A square loop of wire 10cm on a side with 100 turns of wire rotates in a magnetic field, |B| = 0.01T, twenty times each second. At t = 0, the normal of the loop aligns with the magnetic field. Write a symbolic expression for the voltage as a function of time starting from Faraday’s Law. Define each symbol in your expression and give its numerical value. Calculate the peak output voltage of the generator.

What if? physicists often measure the momentum of subatomic particles moving near the speed of light in units of mev/c, where c is the speed of light, and 1 mev = 1.6 ✕ 10−13 kg · m2/s2. based on this, what are the units of momentum for a high-speed subatomic particle in terms of fundamental si units?

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?