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A parallel-plate capacitor with area 0.900 m2 and plate separation of 4.00 mm is connected to a 18.00-V battery.
(a) What is the capacitance? F
(b) How much charge is stored on the plates? C
(c) What is the electric field between the plates? N/C
(d) Find the magnitude of the charge density on each plate. C/m2
A cannonball is dropped from the top of a building. If the point of release is 44.8 m above the ground, what is the speed of the cannonball
A 69-kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted in place.
what is its kinetic energy at the end of the interval. How high a tree would a 80 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount.
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. What is the speed of the second train
A sailboat is running along a straight course with the wind providing a constant force of 55 lb. The only other force acting on the boat is resistance as the boat moves through the water. The resisting force is numerically equal to five times the boa..
An electron starts from rest 75.5 cm from a fixed point charge with Q = -0.150 µC. How fast will the electron be moving when it is too far away.
Use conservation of energy to calculate the speed of the alpha particle at infinity. m/s (e) If the two protons are released from rest and the alpha particle remains fixed, calculate the speed of the protons at infinity. m/s
A farm tractor tows a 3550-kg trailer up a 18?incline with a steady speed of 3.0 m/s. What force does the tractor exert on the trailer
Explain how much work does the gravitational force do on the block as the block travels from point P to (a) point Q and (b) the top of the loop?
The bullet becomes embedded in the block. If the bullet block system compresses the spring by a highest of 84- cm, what was the speed of the bullet at impact with the block.
Two resistors A and B are 60,000 and 40,000 (omega sign) respectively and are in series across a constant power supply of 100V. What amount of current is flowing in each of the 3 resistors
A particle is trapped in an infinite one-dimensional well of width L = 129 nm. If the particle is in its ground state, evaluate the probability to find the particle. (a) between x = 0 and x = 0.042L (b) between x = 0.042L and x = 0.958L (c) betwee..
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