Sarah roller skates 18.5km in 3 1/2 hours. what is her average speed in kilo per hour?

A man inside an insulated metallic cage does not receive shock when the cage is highly charge. explain.

The jamaican bobsled team hit the brakes on their sled so that it decelerates at a uniform rate of 0.43 m/s, how long does it take to stop if it travels 85 m before coming to rest

A box is moved 2m across the floor with a force of 16n. How much work was done?

As temperature increases, what happens to the density of ocean water? A. changes unpredictably B. decreases C. does not change D. increases

Does using oxygen to separate molten copper sulphide into copper and sulphur dioxide count as a physical change

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.

A hydraulic lift is used to lift a heavy box that is pushing down on a 1.5-m2 piston with a force of 1,700 N. What force needs to be exerted on a 0.12-m2 piston to lift the box?

Rauol's friend Johnny sets out from his house in the city. His displacement is 900 m 80° North of west. What is the x component of his displacement vector?

What is the relationship between gravity and mass? What is the relationship between gravity and distance?

A person performs 300 j of work over the course of 60 seconds how much power they did required