What is the efficiency of a machine that has work input of 40 joules and work output of 35 joules

A car is moving at 12 m/s and has a mass of 600 kg. What is the kinetic energy of the car

What happens to mechanical energy if the potential energy of an object decreases? A. Mechanical energy decreases. B. Mechanical energy increases. C. Mechanical energy increases and then decreases. D. Mechanical energy remains unchanged.

Suppose a cars momentum is calculated to be 36000 kg• km / hr the mass of the car is 1500 kg what is the magnitude of the velocity of the car? A) 24 km/hr B) 0.042 km/hr C) 37,500 km/hr D) 34,500 km/hr

A hotel elevator ascends 200m with maximum speed of 5m/s. its acceleration and deceleration both have a magnitude of 1.0m/s2. part a how far does the elevator move while accelerating to full speed from rest?

Two transverse waves are traveling through the same media. The wavelengths and periods of the waves are the same, but one wave has a greater amplitude than the other. Which of the following statements is true regarding the two waves? A.

V is the velocity of a particle moving along the x axis as shown. If x = 2.0 m at t = 1.0 s, what is the position of the particle at t = 6.0 s?

A compound consisting of atoms of small atomic mass is more likely to require

Wave can be described as A. a continuous transmission of energy from one location to the next B. The disturbance of particles in an area C. The transmission of energy through individual particles D. The motion of particles in a medium

A germ is also called a microorganism or a microbe. True False

What is 1.33Ω plus 2Ω?