April swims 50m north and then turns and swims back to the south. What is her velocity if it takes 60 seconds

Which type of wave is not a light wave A) red waves B) radio waves C) ultra-violet waves D) sound waves

An airplane flies 120 km at a constant altitude in a direction 30.0° north of east. a wind is blowing that results in a net horizontal force on the plane due to the air of 2.40 kn in a direction 10.0° south of west.

Some people hang wet clothing outside to dry on warm sunny days. Use particle theory to explain how this technique works. What would happen if clothes were hung out to dry in cold weather? Will they dry?

What is the term for the amount of salts in water

The device shown is used for lifting 55-gallon drums. determine the magnitude of the force exerted at b.

You are asked to burn a gas using a Bunsen burner in order to boil water. Which f he following has no mass? A. Gas. B. Heat. C. Water. D. Water Vapor.

A toy rocket is fired vertically into the air from the ground at an initial velocity of 80 feet per second. Find the time it will take for the rocket to return to ground level

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

1. It takes a 25 N force to push a 250 N box across the floor. a. How much work is done against friction when the box is moved 2 m across the floor? b. How much work is done against gravity when the box is lifted 2 m above the floor?

A 0.5 kg ball is thrown horizontally towards a wall with a speed of 10 m/s. The initial velocity is chosen to be the positive x - direction for this question.