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An electron is accelerated by a uniform electric field (1600 V/m) pointing vertically upward.
A) Find the direction of electron velocity after it moves 0.50 centimeter from rest.
B) Use Newton's laws to find the value of electron velocity after it moves 0.50 centimeter from rest.
Balance the meter stick at its center of gravity and hang an unknown mass (e.g. your keys) at the 90 cm mark. Place the 200-g mass on the meter stick at a location until equilibrium is reached. Record this position. what is the advantage of having th..
A piece of luggage is being loaded onto an airplane by way of an inclined conveyor belt. calculate the work done on the bag
When a resistor is connected across the terminals of an acgenerator (104 V) that has a fixed frequency, there is a current of 0.505 Ain the resistor. When an inductor is connected across the terminalsof this same generator, there is a current of 0..
Old naval ships fired 13 kg cannon balls from a 210 kg cannon. It was very important to stop the recoil of the cannon, since otherwise the heavy cannon would go careening across the deck of the ship.
An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50 r, compute the magnitude of the force between the two objects.
the intensity of the sound wave from a jet airplane is 9.1 wm2 at a distance of 120 m. at what rate does the jet
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Assume the initial launch angle was 45° and neglect air resistance. (a) Determine the initial speed of the projec..
The position of a particle is given by the expression x =(4.00 m) cos(6.00πt + 1/4π), where x is in metersand t is in seconds. Determine the frequency and period of the motion
While rolling marbles on a horizontal window sill, a youngster accidentally shoots one at 3.0 m/s out the open window. He sees it land in a flower pot on a neighbor's fire escape 3.0 s later. How far beneath the sill is the pot?
a flat 174-turn current-carrying loop is immersed in a uniform magnetic field. the area of the loop is 7.05 cm2 and the
your roommate is an aspiring novelist and asks your opinion on a matter of physics. the novels central character is
The average intensity of light emerging from a polarizing sheet is 0.767 W/m2, and the average intensity of the horizontally polarized light incident on the sheet is 0.937 W/m2. Determine the angle that the transmission axis of the polarizing shee..
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