Physics: which action requires no work by a weightlifter? a.) lifting a weight from the floor to above his head b.) pushing a weight across the floor c.) setting the weight down on the floor d.) carrying a weight 1m across a level surface

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

What is a carrier wave and how does it affect what you hear on the radio