A train is moving 35 m/s to the east. It speeds up to 42 m/s east over the

course of 40 seconds. What was the train's acceleration?

O A. 0.175 m/s2 west

O B. 5.71 m/s2 east

O C. 5.71 m/s2 west

O D. 0.175 m/s2 east

A courtyard is shaped like a square with 250

What happens to kinetic energy of a snowball as it rolls across the lawn and gains mass

Why does a star such as Betelgeuse which is located far from the Earth have a much greater absolute magnitude than apparent magnitude?

A cosmic ray electron moves at 7.65 ✕ 106 m/s perpendicular to the Earth's magnetic field at an altitude where field strength is 1.10 ✕ 10-5 T. What is the radius (in m) of the circular path the electron follows?

Two mountain bikers are rolling down a hill. They both have the same mass, but one is taller and has more air drag (friction, etc.) than the shorter one. Which will reach the bottom first?

Why is a coin able to float on top of water in a glass

Here we will look at a more complex problem for which we will use all three of our primary constant acceleration equations. a motorcyclist heading east through a small iowa town accelerates after he passes a signpost at x=0 marking the city limits.

Drag each tile to the correct box. Arrange the objects in order from least to greatest potential energy. Assume that gravity is constant. (Use PE = m * g * h.) 1.) a 15-kilogram stone found at a height of 3 meters 2.

On a cold winters da, y, If you left a drink setting outside, it could freeze. Explain why in a complete sentence Hint-Consider th kinetic theory of heat that explains that temperature is directly related to kinetic energy of atoms.

perature is 0◦F. How much taller is the building when the temperature is 107◦F? The linear expansion coefficient of steel is 1.1 * 10-5 (◦C) - 1.