Give reason 1. electromagnets are temporary magnets?

What magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 4.5 * 107 m/s? Assume that the field is uniform inside the magnet, zero outside.

I need to find the amount of force in newtons

Which of the following Pearces is the best definition of science? A knowledge that governs the physical world B observation of the physical world C a set of predictions that interpret patterns in the physical world D researchers that determines the

Engineers who design battery-operated devices such as cell phones and MP3 players try to make them as efficient as possible.

long-run equilibrium occurs when long-run aggregate supply and aggregate demand meet. What does having long-run equilibrium indicate about a society?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter