You can make a smoothie in a blender with a power of 400 W and an efficiency of 85% how much energy is actually being used to make the smoothie in 30 seconds?

A roller coaster is at the top of a hill and rolls to the top of a lower hill. if mechanical energy is conserved on the top of which hill in the kinetic energy of the roller coaster large

What quantity does the Hamiltonian correspond to? Rest mass Potential energy Total energy Kinetic energy Bohr frequency Lagrangian

How do stars make energy

A mass of 2 kg is hung off a spring, which extends 2 cm determine the energy stored in the spring?

A sound wave has a frequency of 741 hz in air a wavelength of 0.47m what is the temperature of the air as soon as the below city of sound at 0°C is 235 m/s

Neon, helium, methane, krypton, xenon, hydrogen, and ozone make up & what of the atmosphere

The element in an incandescent light bulb that releases light energy is

Would you expect a hammer and a feather to land on the surface of the moon at the same time

Which of two factors influence the weight of an object due to gravitational pull?

What happens when a lamp plugged into an electrical outlet is turned on? A. Energy is gained. B. The form of energy changes, but the total energy remains the same. C. Energy is lost. D. The form of energy changes and the total energy increases.