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A pulsed proton beam is fireat a target each last 45.0ns and there 3.00 X 10^9 protons in each pulse, each proton having a speed of 2.50 x 10^7 m/s. All the protons hit a circular area of 2.83 X 10^-5 m^2 calle dthe beam spot. What is the average pressure on the beam spot during the pulse if the protons are absorbed by the target?
find the mass of Earth from the period T and the radius r of the Moon's orbit about the Earth. T=27.3 days and r=3.82E5 km. suppose the Moon orbits the center of Earth rather than the center of mass of the Earth-Moon system.
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 24.3 m down the road. What was the driver's reaction time (i.e., the time that elapsed before he engag..
Calculation of the ground state of one-dimensional harmonic oscillator using variational Monte Carlo method and How do you know the minimization is good enough?
A block of mass m1 = 0.55kg is placed on top of another block of mass m2 =0.91kg, What minimum coefficient of static friction between the two blocks will prevent the upper one from slipping
A generator is manufactured to produce a maximum EMF of 200v while rotating with an angular speed of 1000rpm. What is the voltage induced within the coil inside the transformer due to the coil in the generator
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
A 56 kg astronaut floating at rest in space outside a space capsule throws his 0.50kg hammer such that it moves with the speed of 14.00 m/s relative to the capsule. What happens to the astronaut? What is the astronaut's speed.
A 7.5 nC charge is located 1.8m from a 4.2 nC charge. Find out the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive.
Two sinusoidal waves, identical except for phase, travel in the same direction along a string, producing the net wave y(x,t)=(6.5 mm)sin(28.0x -4.0 s-1 * t+0.350 rad),with x in meters and t in seconds. what is the resultant amplitude of the two wa..
show that the horizontal distance that the aircraft engine falls is 8400 m. If the airplane somehow continues to fly as if nothing had happened. where is the engine relative to the airplane at the moment the engine hits the ground?
The work done by an external force to move a -7.75 µC charge from point a to point b is 25.0 ? 10-4 J, what is the magnitude of the potential difference between a and b
A hotel elevator ascends 140 {rm m} with a maximum speed of 4.59 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.93 {rm m/s^2}. How long does it take to make complete trip from bottom to top.
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