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A block of mass m and initial speed collides elastically with a block of mass 2m which is initially at rest. Assuming the positive direction is to the right and that there is no friction among the blocks and the surface, what is the velocity of the block of mass m after the collision?
Two long uniform lines of charge are parallel and are separated by 0.350 meter. Obtain what magnitude of force does one line of charge exert on a 5.20 x 10-2 meter section of the other line of charge
An oscillating LCcircuit consisting of a 1.2 nF capacitor and a 3.2 mH coilhas a maximum voltage of 3.7 V. evaluate the maximum current through the circuit
A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat is necessary to boil all the water away
A bowler holds a bowling ball (M=6.5 kg) in the palm of his hand. His upper arm is vertical, his lower arm (1.7 kg) is horizontal. What is the magnitude of the force of the biceps muscle on the lower arm?
a charge of -3.89c is fixed at the center of a compass. two additional charges are fixed on the circle of the compass
A railroad train is traveling at 30.0 m/s in still air. What frequency is heard by a passenger on a train moving in the opposite direction to the first at 18.0 m/s and approaching the first
question 2 unequal masses of 1kg and 2kg are connected by a string going over a clamped light smooth pulley.the system
The tub of a washer goes into its spin cycle, starting from rest and gaining angular speed steadily for 8.00 s, at which time it is turning at 4.00 rev/s. At this point, the person doing the laundry opens the lid, and a safety switch turns off the wa..
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
Helium forms a solid at low temperatures and high pressures. To maintain the order present in a solid, each atom must remain at its assigned position, Find the uncertainty in momentum of the helium atom
A 17 g bullet is accelerated in a rifle barrel 73.4 cm long to a speed of 493 m/s. Use the work-energy theorem tofind the average force exerted on the bullet while it is being accelerated. Answer in units of N.
a snowboarder moves along a horizontal ramp before going off of the edge of the ramp. 1.8s after leaving the ramp, find the snowboarders speed at the moment she leaves the ramp
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