How much work must you do to push a 13 kg block of steel across a steel table at a steady speed of 1.0 m/s for 8.9 s? the coefficient of kinetic friction for steel on steel is 0.60?

Which is a unit of pressure? A. gram B. Kilopascals C. Newtons D. Kilograms

Which best describes why winds at the beach change direction between day and night

What is a pulley system?

A clothes dryer uses about 7 amps of current from a 240 volt line. How much power does it use?

Which f the following are true for gravity

An astronaut in space pushes a piece of equipment to get it into the correct position. What does Newton's third law of motion tell us about this?

Which of the following scientists is incorrectly paired with their major discovery? Henri Becquerel - radioactivity Charles Darwin - theory of evolution James Hutton - rock cycle Charles Lyell - faunal succession

What units are used in the periodic table for atomic mass?

A construction foreman exerts 1300 Newtons of force trying to move a 1200-kg block of concrete. How many Joules of work does he perform?

It takes 9 seconds for a 10 newton force to move an object 4 meters to the right. What are the direction and magnitude of this force? A. The direction is to the right. The magnitude is 9 seconds. B. The direction is 4 meters.