Both balls return to the thrower's hand at the same time.
To determine which ball returns first to the thrower's hand, we need to find the time it takes for each ball to reach its maximum height and then fall back down to the thrower's hand.
Let's consider ball A first. The initial vertical velocity of ball A is 19.6 m/s and the acceleration due to gravity is -9.8 m/s².
Using the equation of motion:
v = u+ (a × t)
where h is the height, v is the final velocity, u is the initial velocity, t is time, and a is acceleration,
we can find the time it takes for ball A to reach its maximum height:
v = 0 m/s (∵ at max. ht velocity becomes zero)
u = 19.6 m/s
a = -9.8 m/s²
∴ 0 = 19.6 + (-9.8 × t)
∴ t = 2 sec
So, ball A reaches its maximum height 2 seconds after being thrown, and comes back down 2 seconds later i.e., 4 seconds after being thrown.
Next, let's consider ball B. The initial vertical velocity of ball B is 9.8 m/s and the acceleration due to gravity is -9.8 m/s^2. We can find the time it takes for ball B to reach its maximum height,
Using the same equation of motion:
v = u+ (a × t)
where h is the height, v is the final velocity, u is the initial velocity, t is time, and a is acceleration,
we can find the time it takes for ball B to reach its maximum height:
v = 0 m/s (∵ at max. ht velocity becomes zero)
u = 9.8 m/s
a = -9.8 m/s²
∴ 0 = 9.8 + (-9.8 × t)
∴ t = 1 sec
So, ball B reaches its maximum height 1 second after being thrown, and comes back down 1 second later i.e., 2 seconds after being thrown.
∵ ball B was thrown 2 seconds after ball A. the actual total time taken by ball B to reach back to the thrower's hand is (2+2)= 4 seconds.
So, both balls fall back to the thrower's hand at the same time which is 4 seconds after ball A is thrown.
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Answer:
Both balls return to the thrower's hand simultaneously.
EXPLANATION:
To decide which ball returns to the thrower's hand first, we must calculate the time it takes each ball to reach its greatest height and then fall back down to the thrower's hand.
Let's start with ball A. Ball A has an initial vertical velocity of 19.6 m/s and a gravitational acceleration of -9.8 m/s2.
Using the motion equation:
v = u+ (a × t)
where h denotes height, v denotes ultimate velocity, u denotes starting velocity, t denotes time, and a denotes acceleration,
We can calculate how long it takes ball A to reach its maximum height:
v = 0 m/s (the maximum velocity is zero)
u = 19.6 m/s
a = -9.8 m/s²
∴ 0 = 19.6 + (-9.8 × t)
∴ t = 2 sec
So, ball A achieves its maximum height 2 seconds after being thrown and returns to earth 2 seconds later, or 4 seconds later.
Let's go on to ball B. Ball B has an initial vertical velocity of 9.8 m/s and a gravitational acceleration of -9.8 m/s2. We can calculate the time required for ball B to reach its maximum height.
Using the same equation of motion as before:
v = u+ (a × t)
where h denotes height, v denotes ultimate velocity, u denotes starting velocity, t denotes time, and a denotes acceleration,
We can calculate how long it takes for ball B to reach its maximum height:
v = 0 m/s (the maximum velocity is zero)
u = 9.8 m/s
a = -9.8 m/s²
∴ 0 = 9.8 + (-9.8 × t)
∴ t = 1 sec
So, ball B achieves its maximum height one second after being thrown and returns to earth one second later, or two seconds later.
Ball B was launched two seconds after ball A. Ball B's actual total time to return to the thrower's hand is (2+2)= 4 seconds.
As a result, both balls return to the thrower's hand at the same moment, 4 seconds after ball A is thrown.
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a satellite is placed in an orbit with a radius that is half the radius of the moon's orbit. find its period in units of the period of the moon.
The period of a satellite in an orbit around the Earth with a radius half that of the moon's orbit is 0.35 TM. Thus, Option A is correct.
Based on the answer, we understand that it takes 0.35 times the amount of time for the satellite to complete one full orbit as it takes for the moon to complete one orbit around the Earth.
To explain, the period of a satellite in orbit around the Earth is directly proportional to the square root of the semi-major axis of its orbit. Since the semi-major axis of the satellite's orbit is half that of the moon's orbit, the square root of this value will also be half the square root of the moon's orbit, resulting in a period that is 0.35 times that of the moon's orbit.
Kepler's third law states that the square of the orbital period of a planet or satellite is proportional to the cube of the semi-major axis of its orbit, so a satellite with a smaller semi-major axis will have a shorter period.
The following options should be provided along with the question:
A. 0.35 TMB. 0.125 TMC. 0.5 TMD. 0.63 TMLearn more about moon's orbit brainly.com/question/29646576
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suppose a clay model of a koala bear has a mass of 0.190 kg and slides on ice at a speed of 0.610 m/s. it runs into another clay model, which is initially motionless and has a mass of 0.310 kg. both being soft clay, they naturally stick together. what is their final velocity?
The final velocity of the two clay models after they stick together is 0.545 m/s.
The final velocity of the two clay models after they stick together can be calculated using the conservation of momentum principle, which states that the total momentum of an isolated system remains constant if no external forces act on it. The initial momentum of the system is the momentum of the first clay model and the final momentum is the momentum of the two clay models combined.
The momentum of each clay model can be calculated using the formula:
p = m * v,
where p is momentum, m is mass, and v is velocity.
The initial momentum of the first clay model:
p1 = m1 * v1 = 0.190 kg * 0.610 m/s = 0.116 kg * m/s
Final momentum of the combined clay models:
p_final = (m1 + m2) * v_final = (0.190 kg + 0.310 kg) * v_final
Equating the initial momentum to the final momentum and solving for v_final:
v_final = p1 / (m1 + m2) = 0.116 kg * m/s / (0.190 kg + 0.310 kg) = 0.545 m/s
So the final velocity of the two clay models after they stick together is 0.545 m/s.
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if the tape timer creates dots at a rate of 35 hz, what time interval in seconds does 3 successive dots represent? g
The frequency of dot production in this instance is 28 Hz since the tape timer produces 28 dots per second.
How long would it take for the sun's light to travel from space to Earth's surface—150 seconds?Light moves at a speed of 186,287 miles per second, or 299,792 kilometers per second. 1 Astronomical Unit, or the time it takes for light to journey from the Sun to Earth, is 499.0 seconds.
A second is how many?The 3rd (symbol: s) is the time unit used in the International Systems of Units (SI). It has historically been defined as 186400 of a day; this number came from the division of a day into 24 hours, 60 minutes, and then 60 seconds.
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the moon completes one orbit around the earth every 27.3 days with respect to the fixed stars. how far (in degrees) does the moon move around the earth in one day? (recall that one full orbit is 360 degrees.)
The moon moves around the earth by approximately 13.2 degrees per day.
This is because the moon completes one orbit around the earth every 27.3 days , and 360 degrees divided by 27.3 days gives us 13.2 degrees per day.
The Moon moves around Earth in an elliptical orbit, completing a full revolution around the planet every 27.322 days. This motion is caused by the force of gravity between Earth and the Moon, which is constantly pulling the Moon towards the Earth. As the Moon orbits, different parts of its surface are illuminated by the Sun, resulting in the Moon's changing phases that we observe from Earth. Additionally, as the Moon moves, it can pass in front of the Sun from Earth's perspective, causing a solar eclipse, or pass into the Earth's shadow, causing a lunar eclipse.
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even though you should be careful in all measurements, which will create a bigger error in the calculated volume: an error in the diameter or an error in the length of the cylinder?
Nevertheless, you should exercise caution while taking any measurements because either an inaccuracy in the cylinder's diameter or its length will result in a larger error in the volume that is predicted.
How is diameter calculated in its entirety?Instance and Formula
2r d = diameter
r = radius
Thus, the radius multiplied by the diameter gives us the diameter formula: diameter = 2. D = 2r is an abbreviated form of this equation. However, if we are acquainted with circle's other dimensions—namely, its radius, circumference, or area—calculating the circle's diameter is simple.
Our approach to handling doubts and mistakes is to reduce them while also being honest regarding them by disclosing them honestly. If your data collection approach and method were correct, justified, and all potential sources of error were covered, you would never lose points for citing a significant final uncertainty.
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Caused or operated by heat that has changed into different forms of energy is called?
Transformation is the process of converting heat directly or indirectly into other types of energy.
What happens during energy transformation?Energy transformation is the process through which energies change from one form to another. Energy is changed someplace every second of the day. Electrical, thermal, nuclear, mechanical, electromagnetic, acoustical, and chemical methods can all be used to express energy.
What three energy conversions are there?Electrical energy can be produced from chemical energy. Heat energy can be created from thermal energy. Electrical energy, potential energy, etc. can be created from mechanical energy.
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1. use your own words and captured images from the simulation to show you can measure: a. wavelength of longest wave possible b. wavelength of shortest wave possible c. height of tallest wave possible
To measure the wavelength of the longest and shortest wave possible, you can use the oscilloscope to observe the waveform. Correct answer: Option A and B.
You can then measure the wavelength by the distance between two adjacent peaks or troughs. Similarly, to measure the height of the tallest wave possible, you can measure the amplitude of the waveform, which is the difference between the peak and the trough.
An oscilloscope is a type of electronic test equipment used to measure voltage over time. It is used to display waveforms of electrical signals, which can help determine the frequency, amplitude, rise time, and other characteristics of the signal. The oscilloscope consists of a display, a set of inputs, and horizontal and vertical control knobs.
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what is one type of light that the sun emits but a light bulb does not?
The sun emits Ultra-violate light but a light bulb does not.
What is sun?A heated ball of incandescent gases at the centre of our solar system, the sun is a star. Beyond the distant Neptune and Pluto's orbits, it has a significant impact.
There wouldn't be any life on Earth without the sun's powerful energy and heat. Even though it is unique to us, the Milky Way galaxy is home to billions of stars similar to our sun. The Earth would be the size of a US coin if the sun were the height of a standard front door.
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you learned in the last unit that there is a minimum speed at which a rollercoaster car can go around a loop and still maintain contact with the track. what is the minimum height h the car should be released so that it goes around the loop safely? assume friction is negligible.
The minimum height for the car to be safely released around a loop is determined by the minimum speed required for the car to remain in contact with the track, which is equal to the square root of the gravitational acceleration times the radius of the loop.
This is known as the "speed of a circular loop" formula, and it states that the minimum speed required for an object to go around a loop of radius "r" is equal to the square root of "g" (acceleration due to gravity) times "r".
In other words, the object must be traveling at a minimum velocity in order to remain in contact with the track and complete the loop without flying off. The height "h" at which the car is released is not a factor in this calculation, as it only affects the initial velocity of the car, which is not relevant to the minimum speed required to maintain contact with the track.
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when connected to a battery, a lightbulb glows brightly. if the battery is reversed and reconnected to the bulb, the bulb will glow when connected to a battery, a lightbulb glows brightly. if the battery is reversed and reconnected to the bulb, the bulb will glow brighter. dimmer. with the same brightness. not at all.
The correct option is A, When connected to a battery, a lightbulb glows brightly. if the battery is reversed and reconnected to the bulb, the bulb will glow when connected to a battery, a lightbulb glows brightly. if the battery is reversed and reconnected to the bulb, the bulb will glow brighter.
A battery is a source of electrical electricity consisting of 1 or more electrochemical cells with outside connections for powering electrical gadgets. when a battery is presenting power, its superb terminal is the cathode and its negative terminal is the anode.
The terminal marked bad is the source of electrons so as to drift through an outside electric powered circuit to the fine terminal. whilst a battery is connected to an outside electric load, a redox reaction converts excessive-electricity reactants to lower-strength products, and the loose-electricity distinction is introduced to the outside circuit as electrical strength.
Traditionally the term "battery" mainly referred to a tool composed of more than one cells; however, the usage has advanced to encompass gadgets composed of a unmarried mobile.
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if 5.4 j of work is needed to stretch a spring from 10 cm to 16 cm and another 9 j is needed to stretch it from 16 cm to 22 cm, what is the natural length (in cm) of the spring?
The required natural length of the spring is 0 cm.
How we get the natural length of the spring?The work done on a spring is given by the equation W = (1/2)kx^2, where W is the work done, k is the spring constant, and x is the change in length of the spring.
From the information given:we have two equations:
W1 = (1/2)k(16-10)^2 = 5.4 J
W2 = (1/2)k(22-16)^2 = 9 J
Solving for k, we can find the spring constant:
k = (2W1)/(16-10)^2 = (2 * 5.4) / (16-10)^2 = 2.7 / 36 = (2.7 / 12^2) N/m
Next, we can use the spring constant to find the natural length (the length of the spring when no force is applied) by setting x = 0 in the equation for work:
W = (1/2)kx^2 = (1/2)k * 0^2 = 0 J
So, x = (2W / k)^(1/2) = (2 * 0 / (2.7 / 12^2))^(1/2) = 0 cm
This means that the natural length of the spring is 0 cm. Note that the unit cm is not used in the calculation of the spring constant, and that the spring constant has units of N/m.
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a 46 kg bowling ball with a radius of 23 cm starts from rest at the top of an incline 3.0 m in height. find the translational speed of the bowling ball after it has rolled to the bottom of the incline. (assume that the ball is a uniform solid sphere.)the acceleration of gravity is 9.81 m/s 2 . answer in units of m/s. answer in units of m/s.
The acceleration (or velocity) of an object on Earth brought about by the gravity force when it is in free fall is referred to as "9.81 meters per second squared." There is no escape from gravity in outer space.
How is translational speed determined?d=vot+1/2a*t. The first equation divides an object's distance traveled into its velocity and acceleration components. A automobile traveling at 30 mph for two hours will cover 60 miles (30 mph x two hours = 60 miles), and this distance is related to beginning velocity.Loss in Potential Energy = Gain in Rotational Kinetic Energy + Gain in Translational Kinetic Energy
How fast is translation?The pace at which a linear position changes is known as translational velocity. The rate of change in each point is actually rotational position is what we refer to as the rigid body's rotational (angular) velocity, or v. Each point on the solid body has the same velocity component since all of its points spin at the same angle at the same time.
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the space shuttle travels at a speed of about 6.38 x 103 m/s. the blink of an astronaut's eye lasts about 116 ms. how many football fields (length
Using speed, distance, time relation, The Space Shuttle covers approximately 8 football fields in the blink of an astronaut's eye.
How do you determine speed?The speed of something or someone is how swiftly they are moving. You can determine something's average speed if you know how far it has traveled and how long it took to get there. Speed is determined by the formula: speed = distance time. Calculating the units for speed requires knowledge of the units for both time and distance.
The equation speed = distance time can be altered, just like any other equation.
The formula can be set up in one of three ways:
Distance is determined by time and speed.
Time and speed both affect distance.
Time = Speed x Distance
To compute one of the variables, we require the other two (speed, distance, or time).
For instance, we need to know the distance traveled and the speed at which movement occurs in order to calculate the travel time.
To find out how many football fields the shuttle covers in one blink of an eye, we need to divide the distance it travels in 116 ms by the length of one football field.
First, let's find the distance:
distance = speed x time
distance = 6.38 × m/s × 116 ms
distance = 738.88 m
Next, let's divide the distance by the length of a football field:
distance ÷ length of a football field
738.88 m ÷ 91.4 m = 8.09 football fields
So the Space Shuttle covers approximately 8 football fields in the blink of an astronaut's eye.
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Cities can reduce earthquake damage by
Answer:
Adaptation – Develop post disaster response plans and operational redundancy to speed recovery time
Avoidance – Reduce risk by structural/nonstructural retrofitting, or lease/buy more resilient properties
Assignment – Transferring the risk to others through insurance
a figure skater on ice spins on one foot. she pulls in her arms and her rotational speed increases.
As her arms close in, her angular speed rises as a result of an increase in potential energy. 2. Her moment of inertia drops while her angular momentum increases, causing her angular speed to rise.
What is speed?The speed at which an object's location changes in any direction. The distance travelled in relation to the time it took to travel that distance is how speed is defined. The most often used unit of speed in daily life is the kilometre per hour (km/h), or miles per hour in the US and the UK. The SI's unit of speed is indeed the metre per second (m/s) (mph).
What is speed and velocity?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value. speedometer, a tool that displays a car's speed in conjunction with
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which type of eclipse occurs almost every 18 months?
Every 18 months or so, there are total solar eclipses, during which the sky becomes completely dark as the moon passes in front of the sun.
What is Eclipse used for?A free Java-based development environment called Eclipse is well-known for its plugins, which enable programmers to create and test code in other computer languages. This Eclipse Public License governs the distribution of Eclipse.
Why is eclipse so important?While more about a century ago, solar totality have been utilized to investigate the constitution of the Moon and its violent activities. Additionally, they have been employed to find evidence in favor of the general special relativity and to pinpoint new components. NASA scientists are still studying eclipses to discover more about the Sun, Venus, or our vacuum of space.
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During fission, some of the nuclear mass is converted into
Select one:
a. critical mass.
b. energy.
c. heavier nuclei.
d. protons.
Answer: b. energy.
Explanation:
a block of wood has a mass of 6.0 g and a volume of 12.0 cm3. what is the density of the block of wood?
Answer:
The density of the block of wood can be calculated by dividing its mass by its volume.
Density = Mass/Volume
Mass = 6.0 g
Volume = 12.0 cm3 = 0.012 liters
Density = 6.0 g / 0.012 L = 500 kg/m^3
Therefore, the density of the block of wood is 500 kg/m^3.
cehgg how far does a plane fly in 15 seconds while its velocity is changing from 145 m/s to 75 m/s at a uniform rate of acceleration?
The plane will travel a distance of 2175 meters while its velocity is changing from 145 m/s to 75 m/s at a uniform rate of acceleration.
What is a change in acceleration?The rate at which velocity changes in relation to time is known as acceleration. It is a vector quantity that gauges the magnitude and direction of a change in velocity. It can be calculated as the velocity's time-dependent derivative or as the velocity change divided by the time-dependent change. The metric for acceleration is meters per second squared (m/).
The difference between two levels of acceleration, either at different times or in distinct directions, is referred to as a change in acceleration. According to mathematics, it can be described as the difference between final acceleration and initial acceleration, as shown by the equation:
Δa = a2 - a1
where "a" stands for the acceleration change, "a2" for the final acceleration, and "a1" for the starting acceleration.
distance = (initial velocity x time) + (1/2) x acceleration x
acceleration = (final velocity - initial velocity) / time
we get:
acceleration = (75 - 145) / 15 = -5 m/
Now,
distance = (145 x 15) + (1/2) x (-5) x = 2175 m
Therefore, the plane will travel a distance of 2175 meters.
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why is a specimen smaller than 200 nm not visible with a light microscope? why is a specimen smaller than 200 nm not visible with a light microscope? it is too easy to lose on the stage. the lenses only go to 100 x magnification power. anything smaller than 200 nm cannot interact with visible light. visible light is only good at wavelengths below 390 nm. request answer
Visible light is insensitive to objects smaller than 200 nm. On stage, defeat is all too often. Only wavelengths below 390 nm are suitable for visible light.
Why can't a light microscope see a specimen that is smaller than 20 nm?Because visible light, which the microscope uses, has a specific range of wavelengths, A smaller item than the wavelength of the light cannot be imaged by the microscope.
Why is a light microscope only capable of 200 nm of resolution?It was believed throughout the majority of the 20th century that far-field light microscopy could not resolve things closer than 150–200 nanometers (see Milestone 3). Light diffracts when it travels through various media,
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Whenever the net force on an object is zero, its acceleration _____.
(a) and velocity are the same
(b) is zero
(c) may be zero
(d) None of the above.
PLEASE I NEED HELP!! ON THIS QUESTION I HAVE TO TURN IT IN TODAY
Answer:
Scalar quantities
temperature, eg 10 degrees Celsius ('C)
mass, eg 5 kilograms (kg)
energy, eg 2,000 joules (J)
distance, eg 19 metres (m)
speed, eg 8 metres per second (m/s)
density, eg 1,500 kilograms per metre cubed
(kg/m)
Answer:
Greetings!!
In exception for
5N down (b/c it mentioned direction)15mph North (b/c it mentioned direction)4m/s (b/c velocity is a vector quantity)9.8m/s^2 (b/c acceleration is a vector quantity)All the rest are scalar quantities.
Hope it helps!!!
Use the information below to answer question 9.
Since a Cessna-172 is a small airplane (750 kg) it may be easily blown
off course by a strong cross wind.
9.
An airplane is travelling at 27.8 m/s due north in calm air when
an east wind of 11.2 m/s begins. This blows the airplane off
course as shown in the diagram. Determine the plane's
momentum relative to the ground as it is being blown off
course. [2.25 x 104 kg m/s, 21.9° W of N]
P= mv
beg
3m
1.2m
direction
of travel
N
T
wind
direction
heading
2+
The momentum of the airplane is 2.24 * 10^4 Kgm/s
What is the momentum?Momentum is a concept in physics that describes the motion of an object. It is a vector quantity, meaning it has both magnitude and direction. The momentum of an object is equal to its mass multiplied by its velocity. In simple terms, momentum is a measure of how much "motion" an object has, taking into account both its mass and speed.
We would have to find the resultant of the velocity from
R = √(27.8)^2 + (11.2)^2
R = 29.97 m/s
We know that the momentum is mv
Momentum = 29.97 m/s * 750 kg
= 2.24 * 10^4 Kgm/s
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Scientists and engineers are testing three different satellites orbiting Earth. The scientists are able to use sensors to determine the gravitational force experienced by each satellite. Some of the data from each of the orbiting satellites is shown in the table below. Distance Satellite from Earth (km) 36,000 36,000 36.000 X Y Z Mass (kg) 400 1.200 900 Gravitational Force (N) 120 360 270 Which statement best summarizes the information given? OA. The gravitational force exerted by Earth on the satellite depends on the satellite's mass. OB. The satellite with the least amount of mass is able to exert greater gravitational force on Earth than the others. OC. The gravitational force exerted by Earth changes the mass of each of the satellites. OD. The gravitational force on the satellite depends only on the distance from Earth at which it is travelling.
The statement that best summarizes the information given is: The gravitational force exerted by Earth on the satellite depends on the satellite's mass.
The correct option is A.
What is the relationship between gravitational force and mass?Gravitational force is the force of attraction that exists between two objects.
Gravitational force is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance of separation.
Greater gravitational forces will be used to attract heavier things since the gravitational force is directly proportional to the mass of both interacting objects. Therefore, the gravitational attraction between two objects grows as their respective masses do as well.
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Convertir 10 gramos a litros
Porque um litro tem 1000 gramas. então 10 grama se convertido em litros torna-se 0,01 Litros.
About LitroLitro é uma unidade de medida de volume. O litro não é uma das unidades international standards, mas está listado como uma das "unidades não international aceitas para uso com o international standards". A unidade SI para volume é o metro cúbico (m³). 1 l = 1 dm = 1000 cm = 1000 cc 1 ml = 1 cm = 1 cc O símbolo do litro é uma letra minúscula ou maiúscula l, L. A letra minúscula l (ℓ) também é usada.
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Earth’s mass m is 5.979×10^24 kg, and its radius r is 6.376×106 m. what is the angular momentum of the earth?
Earth has a radius of 6.376106 m and a mass of 5.9791024 km=1.1961024kg is the value of the earth's angular momentum.
In everyday language, what does momentum mean?Simple motion is defined as momentum. As long as a moving object and it has mass, it has quantity in this situation, and momentum is measured. A thing lacks momentum if it stays still.
What does momentum mean, for instance?Whenever a body starts moving, its potential "power"—the amount of force it can exert on another body—is referred to as momentum. For instance, a baseball thrown quickly at high velocity and a bowling ball with a significant mass travelling very slowly can both have the same momentum.
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a small object is released from rest and fall 1.00 x 10^2 feet near the surface of the earth neglect air resistance how long will it take to fall through
It will take 2.49sec to fall through the 1.00 × 10² feet mentioned.
What occurs if air resistance is disregarded?When objects are stated to be falling freely, they are only being pulled downward by gravity and do not experience much air resistance. Under these conditions, all objects will fall with the same rate of acceleration, regardless of their mass.
A thing falls freely due to gravity.
The distance traveled when free falling is measured in height.
H= Hο −1/2gt
. were Hο is the initial height g is the acceleration due the gravity t is the time
Accepting the final height equal to zero
Hο =1/2gt²
t = √2Hο /g
= 32.17
2 ⁄
t = √2∗1.00∗10²/32.17
= 2.49 sec
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Question:
A small object is released from rest and falls 1.00 × 102 feet near the surface of the earth. Neglect air resistance.
How long will it take to fall through the 1.00 × 102 feet mentioned?
3.12 s
4.50 s
2.49 s
6.25 s
10.0 s
an egg is thrown nearly vertically upward from a point near the cornice of a tall building. the egg just misses the cornice on the way down and passes a point 30.0 m below its starting point 5.00 s after it leaves the thrower's hand. ignore air resistance. what is the initial speed of the egg?
The initial speed of the egg is calculated to be approximately 29.6 m/s.
What is speed?Rate of change of position of any object in any direction is called speed.
We use following kinematic equation to find initial velocity of the egg:
h = vi * t + (1/2) * g * t²,
where h is initial height of the egg, vi is initial velocity, t is time elapsed, and g is acceleration due to gravity (9.8 m/s²).
So, h = vi * t + (1/2) * g * t²
30.0 m = vi * 5.00 s + (1/2) * 9.8 m/s² * 5.00 s²
vi = 2 * (30.0 m - (1/2) * 9.8 m/s² * 5.00 s²) / 5.00 s = 29.6 m/s
So, the initial speed of the egg is approximately 29.6 m/s.
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A device that automatically writes down (records) changes in temp is called?
A thermograph is a gadget that automatically logs (records) temperature changes.
What is the thermograph used for?By identifying heat leaks, thermography is able to identify inadequate thermal insulation and boost the effectiveness of heating and cooling systems. Air leaks in windows and doorframes can also be discovered during a building envelope assessment.
What exactly is a thermograph device?An automatic temperature recorder. The thermometric component is typically either a liquid-filled Bourdon tube or a bimetal strip. The bimetal element in the first scenario is shaped like a helical coil, with one end fixed firmly to the device and the other to recorder pen.
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an evil supervillian has launched a rocket from his/her submarine. the rocket's height, in meters above sea level, as a function of time, , in seconds, is given by find the time it takes for the rocket to reach it's maximum height. round your answer to three decimal places. seconds. what is the maximum height? round your answer to three decimal places. meters
The height of the drone, measured in feet high, as both a time interval t, until it reaches its highest point seconds. Round your response to 3 decimal places.
How do you determine an object's maximum height when it is thrown?A ball is thrown into the air with only an initial vertical component of 32 feet a second from a height of five feet. Calculate the ball's greatest height that use the vertical modelling method, h = -16t2 + materials were prepared + s, where va is the velocity of the object in metres & s is the elevation in feet.
What is the oldest height allowed?Most women's height won't boost after the ages of 18 to 20 even with a nutritious diet. The growth rate form birth to age is depicted in the graph below.20. As can be seen, between years 18 and 20, the growth lines are zero Your bones, more specifically your growth plates, are the cause of your height plateau.
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