Answer:
B. 98.6F is the temperature of dead body in 84.6F atmosphere.
Answer:
See below
Explanation:
After a while, the body will assume the temperature of its surroundings
and will be 84.6 degrees F
IMMEDIATLY after death the body will still be at 98.6 F ...but beginning to cool......
The diagram below shows how sunlight is radiated back into the Earth's atmosphere as heat (infrared radiation).
A: Conduction
B:Coriolls Effect
C:The Greenhouse effect
D: The global warming effect
The diagram that shows how sunlight is radiated back into the Earth’s atmosphere as heat(infrared radiation) is of the Greenhouse effect.
The greenhouse effect is a natural phenomenon that occurs on Earth and heats up our atmosphere.
The name of this effect is derived from a greenhouse, which is used to grow crops in a special environment.
A greenhouse is basically a house that is made up of glass. The glass allows heat to enter the house but it does not allow the heat to escape to the outside thus keeping the greenhouse warm.
Some gases that are responsible for this effect are known as greenhouse gases. These gases are carbon dioxide, methane, chloro- fluoro carbons, etc.
These gases trap the heat of the sun and raise the temperature of Earth thus causing global warming.
Thus, the diagram that shows how sunlight is radiated back into the Earth’s atmosphere as heat(infrared radiation) is of the Greenhouse effect.
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One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 2.97 km. They start at the west side of the lake and head due south to begin with. (a) What is the distance they travel? (b) What is the magnitude of the couple’s displacement? (c) What is the direction (relative to due east) of the couple’s displacement?
The distance they travel is 4.85 km. the magnitude of the couple’s displacement is 1.456 km. The displacement vector is 315 degrees counterclockwise in relation to the east.
The total distance traveled is the overall distance traveled during the entire excursion. However, the displacement is the net distance traveled between the starting location and the final position. Displacement cannot exceed distance in any way. An element of a vector is the displacement. It is a scalar quantity, the distance.
The couple circles a circular lake on foot about 3/4 of the way.
The circle has a radius of r = 1.03 km, or 1030 meters.
The couple's journey begins at point A and ends at point D by taking the path ABCD.
The journey's distance is calculated as follows:
d = 0.75*2*3.14*1.03*d
=4.85 km
The net distance between points A and D is the displacement's magnitude. |d| = |AD|=|r2+r2
= 21.03/2
=1.456 km
The displacement vector is 315 degrees counterclockwise in relation to the east.
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Chance drives her scooter 7 km north. She stops for lunch and then drives 5 km east. She spends 2 hours total. What her distance? displacement? average speed? average velocity?
We know that the distance is the difference between two points. The distance covered is a scalar quantity hence we can obtain the total speed algebraically. The displacement is a vector quantity hence we must obtain it geometrically.
Total distance = 7 km + 5 km = 12 km
Total displacement = √7^2 + 5^2 = 8.6 km East of North
Average speed = 12 km/ 2 hours = 6 Km/hr
Average velocity = 8.6 km East of North/2 hours = 4.3Km/hr East of North
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Four point charges lie on the vertices of a square with side length L. Two adjacent vertices have charge Q, while the other two have charge -Q. What is the magnitude of the electric field at the center of the square?
Answer:
hope it help
Explanation:
E1=2Ecosθ=[x2+l2]3/22kq(l) alongAC;E2=2Ecosθ=[x2+l2]3/22kq(l) alongDB
So, E1⊥E2. Net field is
E0=E12+E22=[x2+l2]3/222kql=2πε0[x2+l2]3/2ql
The magnitude of the electric field at the center of the square is[tex]√(2 * k * |Q| / L^2).[/tex]
What is electric field?Electric field is a physical field that surrounds electrically charged particles and exerts force on other charged particles within the field. It is defined as the force per unit charge experienced by a test charge in the field.
The magnitude of the electric field at the center of the square is given by the formula:
[tex]E = kQ/2L^2[/tex]
where k is the Coulomb constant.
The distance from the center of the square to each vertex is [tex]L/√2.[/tex]
The electric field due to the charges at the vertices with charge Q is:
[tex]E1 = kQ/(L/√2)^2 = 2kQ/L^2[/tex]
The electric field due to the charges at the vertices with charge -Q is:
[tex]E2 = k(-Q)/(L/√2)^2 = -2kQ/L^2[/tex]
The net electric field at the center of the square is:
[tex]E = E1 + E2 = 2kQ/L^2 - 2kQ/L^2 = 0[/tex]
Therefore, the magnitude of the electric field at the center of the square is zero.
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Carry out these steps, and record your findings in the table.
1. Pour water to the 2.0 mL mark in the graduated cylinder. If you look at the graduated cylinder from
the side, you will see the water forms a curve, Make sure the bottom of the curve is at the 2.0 mL
mark.
2. Use the gram scale to measure the mass of the graduated cylinder and 2.0 mL of water. Record the
mass in the table. Calculate the mass of 2.0 mL of water by subtracting the mass of the graduated
cylinder.
3. Repeat this process to find and record the mass of 4.0 mL of water and then 6.0 mL of water.
4. Density is mass in grams divided by volume in cubic centimeters (cm³). 1 mL
d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density.
To fill the graduated cylinder to the 2.0 mL mark, add water. The water makes a curve if you see the graduated cylinder from the side. Make sure the 2.0 mL level is at the bottom of the curve. Calculate the graduated cylinder's mass and the water's mass in milliliters using the gram scale. In the table, note the mass. Subtract the graduated cylinder's mass to determine the mass of 2.0 mL of water. To find and note the mass of 4.0 mL of water, repeat this procedure.
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Is the suns gravitational pull on the earth the same at all seasosons of the year
No, the sun's gravitational pull is not same at all seasons of the year
The gravitational force between the Sun and Earth depends on the earth's distance from the sun and hence it varies over the course of a year. This is because the Earth’s orbit is an ellipse, bulged at the poles like an orange rather than a perfect circle. Earth’s average distance from the sun is approximately 150 million km , closest distance to the Sun is 146 million km, the largest distance is about is 152, so the distance varies by about 5.
The gravitational force between two bodies depends on their mass (how heavy they are) and their distance, and the distance changes according to the rotation an d revolution of the earth around the sun so the gravitational force also varies.
Earth revolves around the sun in its elliptical orbit and hence the force is balanced out due to certain factors and does not spiral out from its orbit. The change in gravitational force is balanced out due to certain factors such as change in speed of rotation and more and hence the gravitational pull on the earth is not the same .
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Please help with this problem!
The horizontal displacement of the backpack as it falls is 765 m.
Data obtained from the questionFrom the question given above, the following data were obtained:
Initial velocity (u) = 85 m/sAcceleration due to gravity (g) = 9.8 m/s²Time (t) = 9 sHorizontal displacement (s) =?How to determine the horizontaal displacementThe horizontal displacement of the backpack can be obtained as follow:
s = ut
s = 85 × 9
Horizontal displacement = 765 m
From the calculation made above, we can see that the horizontal displacement (i.e distance from the car) were the backpack will land is 765 m. Thus, the backpack will not land on your car. Hence, you do not need to move the car.
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Does the identity of a substance change when it melts?
Answer:
No
Explanation:
The chemical identity of the substance is the same. The substance is merely in a different state.
find the number of significant figures in the following product:
0.005032 x 4.0009
The number of significant figures in the following product: 0.005032 x 4.0009 is 9.
What is significant figure?Significant figure is a figure that is meaningful with respect to the precision of a measurement.
It is a digit that is nonzero, followed by a nonzero digit, or (for trailing zeroes) justified by the precision of the derivation or measurement.
According to this question, the product of 0.005032 x 4.0009 is as follows: 0.0201325288
The result of this product is as follows:
Decimal notation: 0.0201325288No. of significant figures: 9No. of decimals: 10Scientific notation: 2.01325288 × 10-²Therefore, the number of significant figures in the following product: 0.005032 x 4.0009 is 9.
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This sentence explains the production and movement of energy in the sun and the flow of energy from the sun to Earth. Drag each item to the correct location. Answers may be used more than once. (2 points) Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. Energy is released in the sun’s core through Response area. It then is transferred by Response area through the sun’s radiative zone to the conductive zone, where it is transferred to the sun’s surface by Response area. From the surface, energy from the sun is transferred to Earth by Response area.
The correct answer is nuclear fusion, radiation, and conduction.
It is a nuclear process in which energy is produced by colliding light atoms. It is the opposite of fission, which results in the disintegration of heavy isotopes. The sun and other stars produce light and heat through fusion.
According to the energy of the emitted particles, radiation is frequently classified as either ionising or non-ionizing. More than 10 eV is often carried by ionising radiation, which is sufficient to ionise atoms and molecules and rupture chemical bonds.
Conduction is an observable occurrence in all states of matter and is the process of transmitting energy through the motion of particles in touch with one another (solids, liquids and gases). Conductors are substances that permit conduction. Conduction is divided into three categories: conduction of heat, conduction of electricity, and conduction of sound.
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An 8kg bullet is shot into a 4kg block , at rest on a frictionless horizontal surface . The bullet remains lodged in the block.The block moves into an ideal massless spring and compresses it by 8, 7cm. The spring constant of the spring is 2400n/m.What is the initial speed of the bullet?
By applying the law of conservation of energy, the initial speed of this bullet is equal to 1.8456 m/s.
Given the following data:
Mass of the bullet, m₁ = 8 kgMass of the block, m₂ = 4 kg.Initial speed of block = 0 m/s (since it's at rest).Compression in the spring, x = 8.7 cm to m = 8.7 × 10 mSpring constant, k = 2400 N/m.How to calculate initial speed of the bullet?First of all, we would apply the law of conservation of momentum to derive an expression for the final velocity of both objects (bullet and block):
m₁u₁ + m₂u₂ = (m₁ + m₂)v
m₁u₁ + 0 = (m₁ + m₂)v
m₁u₁ = (m₁ + m₂)v
v = m₁u₁/(m₁ + m₂)
In order to calculate the initial speed of this bullet, we would also apply the law of conservation of energy:
K.E = U
1/2 × (m₁ + m₂)v² = 1/2kx²
Substituting the value of v, we have:
(m₁ + m₂)[m₁u₁/(m₁ + m₂)]² = kx²
m₁²u₁²/(m₁ + m₂) = kx²
m₁²u₁² = (m₁ + m₂)kx²
u₁² = [(m₁ + m₂)kx²]/m₁²
u₁ = √([(m₁ + m₂)kx²]/m₁²)
u₁ = √([(8 + 4) × 2400 × 0.087²]/8²)
u₁ = √([12 × 2400 × 0.007569]/64)
u₁ = √217.9872/64
u₁ = √3.4061
Initial speed, u₁ = 1.8456 m/s.
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what is a reference point or reference frame
76. Two electric charges -6μC and
+6μC are placed respectively in two
points A and B distant of 1m apart. The
electric field is null at the point C:
A.Located in the middle of the
segment AB
B.Located outside segment AB at
1m from A.
C.Located outside segment AB at
1m from B
D.Outside the line AB
E.No answer is right.
Answer:
D. Located outside line AB
Explanation:
I do not have a Columb table with me, so it could be B. or C., but if I did the math right, then I think the answer is D.
d = 250 g/cm³ V = ? m = 1000 g
The volume is 4cm³.
The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol ρ.The density is 250g/cm³.Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term. The strength of an object's gravitational pull on other bodies is also influenced by its mass. The kilogramme serves as the SI's fundamental mass unit.The mass is 1000g.density = mass/volumeVolume is a measurement of three-dimensional space that is occupied. It is frequently expressed mathematically using imperial or SI-derived units.volume = mass/densityvolume = 1000/250volume = 4cm³To learn more about density, visit :
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One swimmer in a relay race has a 0.50 s lead and is swimming at a constant speed of 5.00 m/s. The swimmer has 44.0 m to swim before reaching the end of the pool. A second swimmer moves in the same direction as the leader. What constant speed must the second swimmer have in order to catch up to the leader at the end of the pool?
Answer:
See below
Explanation:
The lead swimmer will finish in 44 m / 5 m/s = 8.8 seconds
the second swimmer has to cover the 44 m PLUS the length he is behind
the first swimmer in the same amount of time
(44 m + 1/2 s * 5 m/s) / 8.8 s = 5.284 m/s
Yodi had 5 apples, if yodi has 5 apples and gives away 4, how many apples does yodi have left?
This is based on probability since it is obvious that I have 4 apples if I take away 4 of them.
What does PROBABILITY mean?Gonna determine how likely something is to occur, use probability. Many things are hard to predict with 100% certainty. We can only forecast how likely an event is to occur using it, or how likely it is to occur..
provided the information; one apple. 5–4=1. Your teacher is looking for this response.
According to given information;
The four apples you took total four. Probably the one you want is this.
No apples; they were taken from you.
You gave your friend the entire crop of apples.
The fruits you discarded had worms, therefore you got zero apples.
a trio of apples. You missed one.
One apple. You ate two and cut up one of them for a salad.
Five apples. You had 5 apples and you took 4 of your own.
Five apples. You already had an apple.
Six apples. You already had two apples.
Seven apples. You already had three apples.
Eight apples. You already had four…
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You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20
min.
What is your VELOCITY in m/s?
0m/s
-9 m/s
-3 m/s
+4 m/s
Answer:
+4m/s
Explanation:
You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min, then velocity is 4 m/s.
What is velocity?When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.
Uniform motion an object is said to have uniform motion when object cover equal distance in equal interval of time within exact fixed direction. For a body in uniform motion, the magnitude of its velocity remains constant over time.
Given in the question you drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min.
The velocity in m/sec is given as 4 m/s.
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B (B=26.5)
56.0%
A (A = 44.0)
28.0°
C(C=31.0)
< 1 of 1 >
Part A
Given the vectors A and B shown in the figure ((Figure 1)), determine the magnitude of B-A
Express your answer using three significant figures.
195] ΑΣΦ
|B-A =
Determine the magnitude of B-A is 53.68
1.4
Magnitude is a term used to describe size or distance. We can relate the magnitude of the movement to the size and movement speed of the object. The magnitude of a thing or an amount is its size. A car moves at a faster pace than a motorcycle, just in terms of speed.
Magnitude is the relative size of an object (mathematics). The mathematical term for a vector's length or size is the norm. By using the symbol |v|, the magnitude of a vector formula can be utilized to determine the length of a given vector (let's say v). This amount is essentially the distance between the vector's beginning point and ending point.
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You want to average 90 km/h on a car trip. You cover the first half of the distance at an
average speed of 48 km/h.
a) What average speed must you have for the second half of the trip to meet your goal?
b) Is this reasonable? Note that the velocities are based on half the distance, not half the
time.
(a) The average speed must you have for the second half of the trip to meet your goal is 8 km/h.
(b) The value obtained (8 km/h) is not reasonable for the second half of the distance since the first half is 48km/h.
What is average velocity?
Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
average velocity = total distance / total time
v = (d)/(0.5d/v₁ + 0.5d/v₂)
where;
v is the average velocityv₁ is the average velocity during the first halfv₂ is the average velocity during the second half90 km/h = (d) / (0.5d/48 + 0.5d/v₂)
90(0.5d/48 + 0.5d/v₂) = d
0.9375d + 0.5d/v₂ = d
d(0.9375 + 0.5/v₂) = d
0.9375 + 0.5/v₂ = 1
0.5/v₂ = 0.0625
v₂ = 0.5/0.0625
v₂ = 8 km/h
Thus, the average speed must you have for the second half of the trip to meet your goal is 8 km/h.
The value obtained (8 km/h) is not reasonable for the second half of the distance since the first half is 48km/h.
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Example 2 (5 points) Researchers at a university want to know if higher levels of nitrogen in fertilizer will increase the production of tomatoes per plant. Twenty plants are given normal levels of nitrogen and twenty other plants are given ten percent higher levels throughout the growing season. The plants receive the same levels of sunlight, water and are planted in the same soil on one farm. At the end of the experiment the average number of tomatoes produced is the same for each group. The scientists repeat the experiment on two additional farms further south that season. The researchers conclude that increasing nitrogen levels by 10% in tomatoes is not beneficial. Would this be a well-designed reliable experiment? Support your decision with at least three reasons.
The experiment was well designed.
What is an experiment?An experiment is used to determine cause and effect relationships. We know that in this case, the research is aimed at being able to obtain the relationship that exists between the amount of nitrogen in the soil and the production of tomatoes per plant.
As we could see, the experiment includes a control that serves as a baseline for determining the validity of the results. Further more, the sunlight, water and soil were held constant. The experiment was even repeated further south to verify the results.
Based on a careful review of the experiment, the experiment was well designed.
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What was Einstein Seeking?
Einstein was seeking a way to unify electromagnetism and gravity into a single theory.
After all the breakthroughs given by Einstein, he then worked on a " Grand Unified theory" for the last thirty of his life. He believed that all the forces of nature ( Electromagnetism and gravity were the only forces discovered at that time ) must be described by a single theory.
He failed to figure out a way to unify the forces of nature under a single theory. But physicists, even to this day are still working on the Grand Unified theory.
Therefore, Einstein was seeking a way to unify electromagnetism and gravity into a single theory.
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On a day when the wind is blowing toward the south at 3 m/s, a runner jogs west at 4 m/s. What is the speed of the
air relative to the runner?
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
[tex]{\sf {V}_{w} } [/tex]= velocity of wind = 3 m/s (south) [tex]{\sf {V}_{r} } [/tex]= velocity of runner = 4 m/s (west)So,
[tex]{\sf {V}_{w} } [/tex] = - 3 [tex]{ \sf \hat{j}} [/tex][ taking unit vector along north be [tex]{ \sf \hat{j}} [/tex] ]
[tex]{\sf {V}_{r} } [/tex] = - 4 [tex]{ \sf \hat{i}} [/tex][ taking unit vector along west be [tex]{ \sf \hat{i}} [/tex] ]
[tex] \qquad \dashrightarrow\sf \: V_{wr}= V_{w} - V_{r }[/tex]
[ where [tex]{ \sf V_{wr}= } [/tex] Relative velocity of wind with respect to runner ]
[tex] \qquad \dashrightarrow\sf \: V_{wr}= - 3 \hat{ j} - ( - 4 \hat{i})[/tex]
[tex] \qquad \dashrightarrow\sf \: V_{wr}= - 3 \hat{ j} + 4 \hat{i}[/tex]
That is : 3 m/s towards south and 4 m/s towards east.
So, it makes an angle of 37° with south, and 53° with East.
[ The resultant is depicted by yellow arrow in attachment ]
Magnitude :[tex] \qquad \dashrightarrow\sf \: |V_{wr} | = \sqrt{3 {}^{2} + 4 {}^{2} }[/tex]
[tex] \qquad \dashrightarrow\sf \: |V_{wr} | = \sqrt{9 + 16 }[/tex]
[tex] \qquad \dashrightarrow\sf \: |V_{wr} | = \sqrt{25 }[/tex]
[tex] \qquad \dashrightarrow\sf \: |V_{wr} | = 5 \: \: m/s[/tex]
Direction :[tex] \dashrightarrow \sf \tan( \alpha) = \dfrac{b\: \sin \theta}{b + a \sin( \theta) } [/tex]
[tex]{\sf \theta }[/tex] = angle between the two vectors ( along east and south) i.e 90°
b = 4 units[tex] \dashrightarrow \sf \tan( \alpha) = \dfrac{4\: \sin (90 \degree)}{3+ 4 \cos( 90 \degree) } [/tex]
[tex] \dashrightarrow \sf \tan( \alpha) = \dfrac{4 \times 1}{3+( 4 \times 0)} [/tex]
[tex] \dashrightarrow \sf \tan( \alpha) = \dfrac{4}{3} [/tex]
[tex] \dashrightarrow \sf \alpha = \tan {}^{ - 1} \bigg( \dfrac{4}{3 } \bigg)[/tex]
[tex] \dashrightarrow \sf \alpha = 53 \degree[/tex]
So, it's direction is 53° east from south ~
what exactly is science?
( an answer that wld express a physics teacher please :) )
Answer:
he intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
1. What is the temperature in Celsius, If the Fahrenheit was 57.98 Farenheit?
Answer:
57.98 °Fahrenheit =
14.4333 °Celsius
Explanation:
(rounded to 6 digits)
A string applies an upward (tension) force of 34 N to lift a bucket of mass 2.8 kg. What is
the acceleration of the bucket? (Answer in m/s²)
The acceleration of the bucket of mass 2.8 kg which is lifted upwards with a force of 34 N is 12.14 m / s²
According to Newton's second law of motion,
F = m a
F = Force
m = Mass
a = Acceleration
F = 34 N
m = 2.8 kg
a = F / m
a = 34 / 2.8
a = 12.14 m / s²
Acceleration is the rate of change of velocity of an object with respect to time. It is denoted as a.
Therefore, the acceleration of the bucket is 12.14 m / s²
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A train changes its velocity from 70km / h to 20km / h in 6 s The distance it covered is:
a) 75.0 m
b) 9.87 m
c) 15.4 m
d) 20.6 m
The distance covered by the train will be 75 meters.
What is the equation of motion?Physics equations called equations of motion describe how a physical system acts in terms of how its motion alters over time.
The equations of motion, which are a group of mathematical functions stated in terms of dynamic variables, provide a more thorough description of how a physical system behaves.
Given that a train changes its velocity from 70km / h to 20km / h in 6 s.
Use the first equation of motion:-
V= U + at
20 = 70 + ( 1 / 600)a
-50 = ( 1 / 600)a
a = -30000
Use another equation of motion:-
V² = u² + 2as
20² = 70² + 2 ( -30000)S
400 - 4900 = -60000S
-4500 = -60000S
S = -4500 / -60000
S = 0.075 KM
S = 75 meters
Therefore, the distance covered by the train will be 75 meters.
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Determine the horizontal distance, d in meters, between the waiter and the diner at the time the cork reaches where the diner had previously been sitting.
T=3.12 Sec
Distance d= 9.703m
The distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language (e.g. "two counties over"). It is sometimes used to indicate the distance between two points: display style |AB||AB|. The terms "distance from A to B" and "distance from B to A" are frequently used interchangeably.
It is a generalization of the idea of physical distance. Distance is a non-numerical measurement in psychology and the social sciences; psychological distance refers to how an object feels.
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A yellow-gold object has a mass of 57.9 g and its volume is 3 cm³. Could the object be made of gold?
Density of gold: 19.3 g/cm³
Yes, the object is made of gold if the yellow object has a mass of 57.9 g and its volume is 3 [tex]cm^{3}[/tex].
Mass of object = 57.9 g
Volume of object = 3 [tex]cm^{3}[/tex]
Also, given density of gold: 19.3 g/[tex]cm^{3}[/tex]
We know that, Density = Mass/Volume
= 57.9/3
=19.3 g/[tex]cm^{3}[/tex]
So we calculated the density from the given data in question.
As the density of gold and the given yellow object is same we can conclude that the object is made of Gold.
It is yellow too which is a property of gold and the density is same as well.
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What is the current in the 60.0 Q resistor? 120.0 V O A. 80.0 A B. 2.00 A O C. 1.50 A OD. 12.0 A 60.002 20.0 Q A
2A
Given ,
Resistance=60
V=12
V=IR
I=V/R
I=120/60=2A
The pace at which electrons flow past a location in a complete electrical circuit is defined as current. At its most fundamental, current Means flow.
An ampere (AM-pir), sometimes known as an amp, is the international unit for measuring current. It denotes the number of electrons (also known as "electrical charge") that pass across a location in a circuit over a specific time period.
A current of one ampere indicates that one coulomb of electrons—that is, 6.24 billion billion (6.24 x 1018) electrons—moves across a circuit in one second. The method is comparable to determining how many gallons move through a single spot in a pipe in one minute (gallons per minute, or GPM).
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battery acid has specific gravity equal to 1.285 and is 38.0% sulphuric acid by weight. what mass of sulphuric acid contained
The weight of sulphuric acid in the acid is 488.3 grams.
Specific gravity is a comparing tool used to compare weight of a specific liquid when compared to same unit of water as standard substance.
Specific gravity can be defined as the ratio of the density of a substance to that of a standard substance. Water being the standard substance here.
Let us consider the weights for 1 Liter of acid
Weight of 1 liter of water is 1000gram
Therefore weight of 1 liter of acid=1.285 x 1000 =1285 gram
It is given that the acid is 38 percent by weight of sulphuric acid
Therefore, weight of sulphuric acid= 38% of 1285 gram
weight of sulphuric acid = 38/100 x 1285
=488.3 gram
Therefore, weight of sulphuric acid in the acid is 488.3 gram
Hence, the weight of sulphuric acid in the acid is 488.3 grams
Disclaimer:
Quantity of acid has not been mentioned and hence 1 liter has been taken as the quantity.
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