What is the mechanical advantage of a machine that uses an input force of 20 newtons to achieve an output force of 60 newtons

When you and a friend move a couch to another room, you exert a force of 75 N over 5 m. How much work did you do?

Which of the following is the most important reason why simple harmonic motion will not continue forever in most real-world situations? a. frictional effects dissipate energy. b. the restoring force is not strong enough. c.

What do you think would be the most important thing to know about understanding the life of Sioux (Lakota) children?

The energy stored in compounds and released in reactions is what kind of energy? a. electrical energy b. nuclear energy c. mechanical energy d. chemical energy

What is the most important feed grain for livestock

What is the principles of electric motor

A tow truck has a weight of 10,350 N. What is the mass of the tow truck?

Calculate the momentum of 5.07 kg egg that is dropped from a roof and falls 2 seconds before hitting the ground.

Make a prediction based on your understanding of the cause-and-effect relationship between environment and trait: what happens when an environmental change is too extreme for the population of organisms to adapt?

You are holding the axle of a bicycle wheel with radius 35.0 cm and mass 1.00 kg. You get the wheel spinning at a rate of 75.0 rpm and then stop it by pressing the tire against the pavement. You notice that it takes 1.