How do u know if a wave is a mechanical wave?

Which best describes the forces identified by Newton's third law of motion? equal and acting on different objects equal and acting on the same object unequal and acting on different objects unequal and acting on the same object

A mechanical device requires 500j of work to do 200j of work in lifting a box. What is the efficiency of the device?

What type of energy slows down

Assuming no friction form air, how far will a dropped rock fall in 10 seconds

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 40,500 mg. Calculate the density of mercury.

How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill? Options: A) It is lost. B) It increases. C) It remains the same. D) It is stored in the bicycle rider.

When is a sailboat the stand on vessel in relations to a recreational power boat?

What happens when a balloon is rubbed with a woollen cloth?

A child causes a wagon to accelerate by pulling it with a horizontal force. newton's third law says that the wagon exerts an equal and opposite force on the child. how can the wagon accelerate? (hint: draw a free-body diagram for each object.)

Which wavelengths of light is the highest in energy?