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An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. If each particle is moving at a speed of 0.45c relative to the laboratory before the collision, determine the energy of the electromagnetic radiation.
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A spaceship of mass 2.30×106kg is cruising at a speed of 5.30×106m/s when the antimatter reactor fails, What is the speed of the third piece
You are asked to design a spring that will give a 1310-kg satellite a speed of 3.50 m/s relative to an orbiting space shuttle, What must the force constant of the spring be
What hormones are hypersecreted causing hyperglycemia and hypertension? What is the cause and what physical factor allow to rule out thyroid problem.
An artillery shell is launched on a flat, horizontal field at an angle of ? = 37.8° with respect to the horizontal and with an initial speed of v0 = 277 m/s. What is the horizontal distance covered by the shell after 9.26 s of flight? What is the ..
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm, What are the fractions of muscle and fat in the leg
a heat engine operates between a hih temp reservoir at 610K and low temp reservoir at 320K. find the net change in entropy as a result of this cycle
A particle leaves the origin with an initial velocity of 4.20 m/s in the x direction, and moves with constant acceleration ax = -1.80 m/s2 and ay = 2.30 m/s2. a-How far does the particle move in the x direction before turning around? b-What is the..
A car drives straight off the edge of the cliff that is 56 m high. The police at the scene of the accident note that the point of impact is 128m from the base of the cliff. How fast was car travelling when it went over the cliff.
You drop a 1.5 kg textbook to a friend who stands on the ground 10 m below the textbook with outstretched hands 1.50 m above the ground. What is the speed of the textbook when it reaches the hands? m/s
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
The fastest pitched baseball was measured at 46 m/s, what force did he produce on the ball during this record-setting pitch
A wrecking ball (weight = 5680 N) is supported by a boom, which may be assumed to be uniform and has a weight of 2520 N. compute the tension in the support cable
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