A 5kg box is pulled by a rope with a force of 5N in the horizontal direction at a constant speed. What is the friction force between the box and the floor?

A boy, mass 70.0 kg, riding a skateboard, mass 2.0 kg, is traveling 3.0 m/s East when he attempts to jump forward from his skateboard. If his velocity immediately after leaving the skateboard is 3.1 m/s, what is the velocity of the skateboard?

The maximum height that an average person can jump from a crouched start is about 60 cm. By how much does the gravitational potential energy increase for a 72 kg person in such a jump?

Fill in the blanks. (67) In what way are speed and velocity different?

A sample of an unknown compound is vaporized at. The gas produced has a volume of at a pressure of

At most crime scenes, investigators will only be able to recover partial fingerprints

If r = KL/d2 find L to the nearest tenth foot if r = 2.5 ohms, k = 10.8 and = 85 mil

A 1500 kg car accelerates uniformly from rest to reach 10.0 m sin 5.00 s. Determine (i) the average power delivered by the engine.

What is 1/3 of 300

What geologic features might form at the surface of plate A?

Is it true that mollusks that live in water have lungs