Physics, 05.02.2021 14:40 ineedhelp2285

1. Two magnets are placed on a table, and they immediately move to attach to each other. Which statement is correct about the energies in the system? Kinetic energy is at its peak when the magnets are first released, then it decreases steadily. Energy stored in the magnetic field becomes zero.

The kinetic energy of the system is derived from the thermal energy created by increased velocity. Energy stored in the magnetic field does not change.

Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.

The velocity and kinetic energy of the system increase as the energy stored in the magnetic field increases.

2. Two magnets are placed on a table, and they immediately move to attach to each other. Which statement is correct about the energies in the system?

The energy stored in the system is converted to kinetic and thermal energy.

The energy stored in the system is converted to kinetic energy.

The energy stored in the system is converted to kinetic, thermal, and sound energy.

The energy stored in the system is converted to thermal and sound energy.

3. A magnet is moved close to a rubber band. How does the energy stored in the magnetic field change?

The energy stored in the magnetic field increases.

The energy stored in the magnetic first increases and then decreases.

The energy stored in the magnetic field does not change.

The energy stored in the magnetic field decreases.

4. Two donut-shaped magnets are stacked on top of each other with a wooden dowel in the center. The south poles of the magnets are facing each other. Once the upper magnet is released, it accelerates downward and stops 1 cm above the lower magnet. How does the energy stored in the magnetic field change?

All of the energy stored is converted into kinetic, thermal, and gravitational energy.

Some of the energy stored is converted into kinetic, thermal, and gravitational energy.

All of the energy stored is converted into kinetic and thermal energy.

Some of the energy stored is converted into kinetic and thermal energy.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:30, powberier6979

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Answers: 2

continue

Physics, 22.06.2019 05:30, ygrant03

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Answers: 1

continue

Physics, 22.06.2019 08:50, dijonmckenzie3

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Answers: 2

continue

Physics, 22.06.2019 11:00, chelton3813

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

Answers: 1

continue

You know the right answer?

1. Two magnets are placed on a table, and they immediately move to attach to each other. Which state...