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A capacitor is charged up so that 500 nC of charge are on each plate. The capacitor is 2 cm x 3 cm, and is .5 cm between each plate. The negative plate has a hole in the middle of it. A proton is placed near the middle of the positive plate and let go. a. What is the speed of the proton when it leaves the capacitor? b. When it leaves the capacitor it enters another capacitor rotated 90 degrees that is similar to the first capacitor. At what angle does it leave the second capacitor.
A wire carrying a 32.0 A current passes between the poles of a strong magnet perpendicular to its field and experiences a 2.12 N force on the 4.00 cm of wire in the field. What is the average field strength
A radar station locates a sinking ship at range 18.1 km and bearing 136° clockwise from north. How far apart are the plane and ship
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating upward at a rate of 1.22 m/s^2. What is the magnitude of the tension in the rope?
A 7.75 H inductor with negligible resistance is placed in series with a 15.7 V battery, a 3.00 ? resistor, and a switch. The switch is closed at time t = 0 seconds. Calculate the current as time approaches infinity
The driver of a car slams on the brakes when he sees a tree blocking the road. With what speed does the car then strike
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) draw a diagram showing the wire loop, what is the induced emf in the wire loop
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 18.0° below the horizontal. Find the length of time the car is in the air
What is the fractional change in the period of the pendulum.
One afternoon, a couple walks three-fourths of the way around a circular lake, What is the magnitude of the couple's displacement
Sarah's twist angular momentum increases from 0 to 50 kg*m^2/s in 0.25 s as she initiates a twisting jump on the ice. How fast is Sarah's twist angular velocity at the end of the 0.25 s
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 53.0cm. What is the magnitude of the gravitational acceleration on this planet
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
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