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1) Two 3.50g beads (point charges) are hanging on threads and repel each other after being equally charged. The threads are tied together at the top and the length of each is 88 cm from the top to the center of the charge. Hanging down and because they repel each other, the two threads make an angle of 32 degrees (16 degrees from the vertical). What is the charge on each bead?
2) A parallel plate capacitor has an electric field between its two plates of 525,000 V/m. The two plates are 2.2x10-5 m apart. An electron is released from rest at the surface of the negative plate and simultaneously a proton is released from rest at the surface of the positive plate.
a. What will be the speed of the electron when it reaches the positive plate?
b. What will be the speed of the proton when it reaches the negative plate?
A water slide launches a child horizontally above a swimming pool. How far from the launch point does the child land in the water
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
A continuous line of charge lies along the x axis, extending from x = +x0 to positive infinity. What is the direction of the electric field at the origin
In Rutherford scattering of alpha particles from a thin gold foil, determine a maximum possible radius of the nucleus
Suppose after charging a 4 µF capacitor to 8 V, you connect it to the second uncharged capacitor of 7 µF. What voltage will your voltmeter read across the second capacitor
An elevator releases 11200J of gravitational potential energy as descending 4m between floors. How much does elevator weigh.
In the Biomedical and Physical Sciences building at MSU there are 132 steps from the ground floor to the sixth floor. Each step is 16.6 cm tall. How many food Calories did the person burn during the walk
define the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.
A space traveler weighs 580 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
A particle of mass 1.00× 10?3 kg and charge ?1.00 ?C is released from rest near the ground in a constant, horizontal electric field of strength 5.00 kV/m. What is the change of its electric potential
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minute nap, and the tortoise wins by the length of his ..
The period of the moon (the time for a complete revolution) is 27.32 days, Determine the angular velocity of the moon
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