In a biathalon race you first ride a bicycle at an average speed of 19.1 mi/h for 18.5 miles, then you must run for another 5.5 miles. With what average speed, in miles per hour, must you run if your average speed for the entire race is to be 14.5 mi/h?

The float is 3.95 m west of the grandstand after 3.5 s of its start.

The distance is defined as the total length of the path taken by a moving body in order to reach the final position starting from initial position. Mathematically -

Distance [d] = Speed [s] x time [t]

Given that a float starts from 9.2 m west of a grand stand for the parade with the speed of 1.5 m/s. Therefore we can write -

Speed [s] = 1.5 m/s

Distance between float and grandstand [D] = 9.2 m

The location of the float after 3.5 seconds of its start is as follows-

d = s x t

d = 1.5 x 3.5

d = 5.25

Therefore -

Distance between the float and the grandstand after 3.5 seconds of its start = D - d = 9.20 - 5.25 = 3.95 m

Therefore, the float is 3.95 m west of the grandstand after 3.5 s of its start.

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For the two animals involved (bird and its prey), the momentum of both animals is conserved.

The principle of conservation of momentum states that if two objects collide, then the total momentum before and after the collision will be the same if there is no external force acting on the colliding objects.

Initial momentum = final momentum

Thus, for the two animals involved (bird and its prey), the momentum of both animals is conserved.

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Answer: 100n

Explanation: 1+1=2

Answer:

c because first is totally wrong and second one is about two football fields and d is also totally wrong because it is a partnership of at least 10 countrie so.i think č is correct answer.

Yes a scientific is more accurate because it has what is actually correct and what is it and ect than a theory

Answer;

1. Accuracy is the closeness with which an instrument approaches the true value of the quantity being measured

2. Precision is a measure of the reproducibility of the measurement

3. Accuracy may be specified in terms of limits of errors.

Answer:

500 N

Explanation:

600 forward netwtons - 100 backwards newtons =

500 net newtons forward

Answer:

Should be 400m

Explanation:

The ray does not bend when it enters the semi circular glass block - Light ray incident on semicircular block at 90 degrees, therefore there is no change in the direction of ray at P.

Electromagnetic radiation that falls within the region of the electromagnetic spectrum that the human eye can see is known as light or visible light.

Light is electromagnetic radiation that the human eye can perceive. From radio waves with wavelengths measured in meters to gamma rays with wavelengths shorter than around 1 1011 meters, electromagnetic radiation occurs throughout an incredibly broad range of wavelengths.

Light governs our sleep-wake cycle and is crucial to our health and wellbeing. In actuality, "light" that is visible is a type of radiation, which is just energy that moves in the form of electromagnetic waves. It can alternatively be explained as a flow of "wave-packets," or particles, known as photons.

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Answer:

0.1 m/s (or 100 cm/s)

Explanation:

At the first point on the graph’s faded grid, the object has traveled 1 meter in 10 seconds. At the next point, the object traveled 2 meters in 20 seconds. This is a 1 to 10 ratio, or 1/10, which is 0.1 in decimal format.

A. The electric field is null at the point C; located in the middle of the

segment AB.

Electric field is the region of space where the influence of electric force is felt.

E = kq/r²

where;

E(+6μC) = (9 x 10⁹ x 6 x 10⁻⁶) / (0.5²)

E(+6μC) = +216,000

E(-6μC) = (9 x 10⁹ x 6 x 10⁻⁶) / (0.5²)

E(-6μC) = -216,000

E(net) = E(+6μC) + E(-6μC)

E(net) = 216,000 - 216,000 = 0

Thus, the electric field is null at the point C; located in the middle of the

segment AB.

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The formula for distance = speed * time

60 m/s is the speed.

60 secs is the time.

Fill them in.

distance = 60 * 60

distance = 3600

please give brainliest

Answer:

3600m

Explanation:

s= vt

= 60m/s × 60sec

=3600m

Answer: (3.32times{10^{5}} Nm^ {-1})

Explanation:

Since an external force now acts on the car as it moves downhill, it is no longer a closed system.

A closed system is one in which there is no exchange of energy between the system and the external environment. There is usually a boundary that separates the system from the external environment.

When the car was driving along the flat surface, it could continue moving endlessly according to the Newton's first law of motion. If the direction is now changed downhill, an external force now acts on the car and that is the force of gravity.

Since an external force now acts on the car as it moves downhill, it is no longer a closed system.

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Since the rope is not moving, the 300N tension acts as if the other end of the rope were fixed to a certain location for each team. It must exert an equivalent and opposing horizontal force, thus it is 300N as well.

The tension in the rope during a tug-of-war is caused by pulling forces at both ends. Since there is a 250 N pulling force at either end, but it pulls in the opposite direction, the tension on the rope will be caused by these two pulling forces together. When two opposing forces of 100N each are applied to the ends of a rope, the tension in the rope will be zero because the opposing forces, despite having the same magnitude, operate on the same body in opposing directions and cancel one another out.

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Answer:

the right answer is d

Explanation: