To solve this problem we will apply the concepts related to the Force of gravity given by Newton's second law (which defines the weight of an object) and at the same time we will apply the Hooke relation that talks about the strength of a body in a system with spring.
The extension of the spring due to the weight of the object on Earth is 0.3m, then
The extension of the spring due to the weight of the object on Moon is a value of , then
Recall that gravity on the moon is a sixth of Earth's gravity.
We have that the displacement at the earth was , then
Therefore the displacement of the mass on the spring on Moon is 0.05m
Only B is correct.
The index of refraction is lower in the second medium than it was in the first ✓
According to the question : Which statement is true of light when it speeds <em>up</em> on entering another medium?
If the refractive index was greater than the 1st medium (like in answer A) light speed reduces.
But if the refractive index was lower, speed of light increases.
Answer:
See explanation.
Explanation:
If each runner was holding the pole, the runner in the water side of the pole would probably be behind the other runner. Since running in knee deep is hard and makes you slower, the pole would be slanted.
To solve this problem it is necessary to apply the concepts related to the conservation of the Momentum describing the inelastic collision of two bodies. By definition the collision between the two bodies is given as:
Where,
= Mass of each object
= Initial Velocity of Each object
= Final Velocity
Our values are given as
Replacing we have that
Therefore the the velocity of the 3220 kg car before the collision was 0.8224m/s
Answer:
A car that drives on an icy road has to make a short stop. The one mentioned here is Newton's first law of motion (or law of inertia). It says that an object always has the tendency to remain in its original state of motion. A) The vehicle will skid outward when a car traveling on an icy road comes to a sharp bend, the car will skid outward as it turns.
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