We know the mechanical energy Ina system is 30 J, and we know the potential energy is 20J. What is the kinetic energy?

What is the transfer of thermal energy from one material to another by electromagnetic waves?

Is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound.

How can the newly discovered form of matter time crystals, how can they vibrate without any outside force? Doesn't that defy the currently accepted laws of physics?

A grating whose slits are 3.2x10^-4 cm apart produces a third-order fringe at a 25.°0 angle. What is the wavelength of light that is used?

Let n represent the number of similar resistors in a circuit. Each resistor has a resistance of r. When the resistors are connected in parallel the circuit has a total resistance of R.

What is the momentum of a 0.145 kg baseball traveling at 40.0 m/s

To analyze the motion of a body that is traveling along a curved path, to determine the body's acceleration, velocity, and position. A motorcyclist travels around a curved path that has a radius of 250 ft.

You walk with a velocity of 2 m/s north. You see a man approaching you, and from your frame of reference he has a speed of 3 m/s to the south.

Imagine you are holding an apple. Does this apple have energy? how do you know?

Explain how inertia and the shape of a loop counteract the force of gravity to keep riders from falling out when a roller coaster goes through a loop traveling upside down