A good way to de-magnetize something is to

O A. get it wet

O B. place it in a magnetic field

C. heat it

D. place it in an electric field

A uniform electric field contains a number of particles. All are experiencing forces in the same direction as the electric field. What can be concluded from this? All the particles have negative charges. All the particles have positive charges.

A bullet travels at 870 m/s. How long will it take a bullets to go 1 m?

Write a 150 word paragraph or two that describes at least three everyday things that exist or occur because of science. Make sure you use examples different from those given in the lesson.

As an airplane taxies on the runway with a speed of 16.5 m/s, a flight attendant walks toward the tail of the plane with a speed of 1.22 m/s. what is the flight attendant's speed relative to the ground?

A responder can protect himself/herself from radiation by using shielding as a response action. What materials are best for protecting against beta particles?

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to five times her weight as she goes through the dip. If r = 17.

A mass spectrometer accelerates doubly ionized atoms of charge 2e over a potential difference V before they enter a uniform magnetic field B which is perpendicular to the direction of motion of the ions.

A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120 m starts from rest and accelerates at 30.

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched