A ball is dropped from the roof of a building. If it takes the ball 2.6s to reach the ground, how tall is the building?

Two objects of mass m move in opposite directions toward each other. The green object moves at velocity v, and the blue object moves at velocity 2v.

if you walk 400m around the track. what will be your distance traveled? what will be your displacement

Whats in space? is it cold up there or warm or hot or chilly?

A flute player hears four beats per second when she compares her note to a 784 Hz tuning fork (the note G). She can match the frequency of the tuning fork by pulling out the "tuning joint" to lengthen her flute slightly.

What causes atoms to bond together ?!

3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Kendall has empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble. Which statement best describes what Kendall can do? A.

2. With regard to the pH scale, a solution with a pH A. higher than 7 is considered an acid. B. lower than 7 is considered basic. C. of 6 is considered neutral. D. close to 14 is considered a strong base.

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.

In the game of volleyball, what skill relates to Newton's second law