A runner has an initial velocity of 4 meters per second. After 20 seconds, the runner's velocity is 6 meters per second. Which is the runner's acceleration?

If a car with mass 750 kg is lifted to a height of 2.3 m how much gravitational potential energy is added to the car

You are holding a block of wood with dimensions 3 cm 6 cm 9 cm on the palm of your hand. Which side must be touching your hand for you to experience the greatest force?

How would you calculate the spring constant of an unknown spring?

When you try to keep your eyes focused on a rocket as it ascends you contract the?

The primary purpose of describing planetary orbits in terms of epicycles and deferents was to account for the

An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. What would she weigh on Mars?

A chemical bond formed when Adams share three pairs of electrons is A. an ionic bond B. a single bond C. a double bond D. a Triple bond

A 1100 kg car rounds a circular turn of radius 24.6 m. Of the road is flat and the coefficient of static friction between the tires and the road is 0.59, how fast can the car go without skidding

What is the momentum of a 15 kg tire rolling down a hill at 3 m/s? 5 kg • m/s 18 kg • m/s 45 kg • m/s 60 kg • m/s

Which of Newton's laws, when combined algebraically with his law of universal gravitation, can be used to calculate Earth's mass? A) first B) second C) third