A system of pulleys is used to raise a load of bricks that weighs 1,700 newtons. The force applied to the pulley is 340 newtons. What's the mechanical advantage of this machine?

You hold a piece of wood in one hand and a piece of iron in the other. both pieces have the same volume, and you hold them fully under water at the same depth. at the moment you let go of them, which one experiences the greater buoyancy force?

Gridlock occurs when: A. A car cuts into the gap in front of your car B. Traffic is required to travel by an alternate route C. Vehicles get stuck in the middle of an intersection

Freddie Mercury is the singer of which Band Yes or Queen or Fleetwood Mac

A force of 40 N is applied on a body so that it attains a velocity 20m/a in 5s. what is the mass of body?

When a battery does 24 j of work on 10 c of charge, the voltage it supplies is?

Photosynthesis is an endothermic chemical reaction that forms sugars from carbon dioxide, water, and the sun's energy. Which of the following must be true of photosynthesis?

What is a calorimeter used to measure?

When the mover pushes the box, two equal forces result. Explain why the box moves

What equation expresses the the work-energy theorem?

What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?