A train moves from rest to a speed of 15 m/s in 30.0 seconds. what is it's acceleration

Explain why adding oil to the moving parts of a machine can increase its efficiency

How to determine how hot or cold a star is?

What is meant by banking of roads?

If a spring has a spring constant of 1.00 * 10^3 N/m, what is the restoring force when the mass has been displaced 20.0 cm?

Which of the following describe slab pull

Ariana is accelerating her car at 4.6 m/s2. It took her 10 seconds to reach this acceleration. Her starting velocity was 0 m/s. What was her final velocity? A. 0 m/s B. 2.3 m/s C. 4.6 m/s D. 46 m/s

Read the scenario below and answer the question that follows. Molly and Mark are new parents. Their daughter Alvina often cries when she is uncomfortable. Each time Alvina cries, her parents give her a stuffed rabbit.

A 6.0-kg ball is sliding to the right at 25.0m/s and strikes a second ball (15-kg) that is initially at rest head-on. After the collision, the 6-kg ball moves to the left at 12.5m/s. What is velocity of the second ball?

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in simple harmonic motion, with a period of 12.4 h. how long does it take for the water to fall a distance 0.

What is the average speed of an object with a total distance traveled of 45 meters in 50 seconds