A pulley is used to lift a heavy mass from the floor to the platform. The IMA of the system is 5 and the AMA is 2.5. What is the efficiency of the system?

Wave energy can only be transmitted through a material medium. wave energy can only be transmitted through a material medium. a. True b. False

Cypress trees are adapted to living in

How to use producer in a sentence science terms

What system includes the living components of the Earth? a. geosphere b. hydrosphere c. atmosphere d. biosphere

A 8-N block slides along a level surface. it has the inital speed of 7m/s. The work done by a 15N force pushing this block is: a) 3J b) 6J c) 56J D) impossible to calculate without more information e) none of these

Object moving at a constant velocity will always have a

Who would most likely agree that a child learns certain behaviors from observing other people?

A bullet is fired horizontally from a height of 78.4 m and hits the ground 2400 m away. With what velocity does the bullet leave the gun?

Select the correct answer. Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased? O A. The charge on B decreases. OB. The charge on B increases. OC.

You are riding a bicycle home from school. You average 5 meters per second and you are headed south. What motion can you determine from this data? OA Acceleration OB Distance OC Speed OD Velocity