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Beams of high-speed protons can be produced in "guns" usingelectric fields to accelerate theprotons. (a) What acceleration would aproton experience if the gun's electric field were 2.23 x104 N/C? (b) What speedwould the proton attain if the field accelerated the proton througha distance of 0.883 cm?
A horizontal 790-N merry-go-round of radius 1.20 m is started from rest by a constant horizontal force of 45 N, Find the kinetic energy of the merry-go-round after 5.0 s
A 0.22-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.1 m. (a) Relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of th..
A bucket filled with water has a mass of 54 kg and is hanging from a rope that is wound around .050 m radius stationary cylinder. if the cylinder does not rotate and bucket hangs straight down, what is the magnitude of the torque the bucket produc..
A skateboarder, starting from rest, rolls down a 13.7-m ramp. When she arrives at the bottom of the ramp her speed is 6.28 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 33.3 ° with respec..
An archer pulls her bowstring back 0.420 m by exerting a force that increases uniformly from zero to 220 N. How much work is done in pulling the bow
Two charges are placed on the x axis. One charge (q1 = +8.97mC (microC)) is at x1 = +3.40cm, Calculate the net electric field at x = 0cm
The New River Gorge bridge in West Virginia is a 522 m long steel arch. How much will its length change between temperature extremes -19.4oC and 35.5oC
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor. The crate is speeding up at 0.22 m/s2. What is the work done by friction on the crate
Three deer, A, B, and C, are grazing in a field. Deer B located 64 m from dear A at an angle of 53° north of west, What is the distance between deer A and C
Gas is confined in a tank at a pressure of 11.7 atm and a temperature of 30.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 77.0°C, what is the pressure of the gas remaining in the tank? atm
A toaster uses a Nichrome heating wire. When the toaster is turnedon at 20° C, the initial current is 1.50 A. A few secondslater, the toaster warms up and the current now has a value of 1.28A.
A 43.0 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 11.5 mm diameter, and 12.5 cm length. Compute the magnetic field inside the solenoid
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