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You are traveling in a spaceship at a speed of 0.56c away from Earth. You send a laser beam toward Earth traveling at velocity relative to you. What do observers on the Earth gauge for the speed of the laser beam?
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the jumper jump
an 90.0 kg skydiver jumps out of a balloon at an altitude of 1 400 m and opens the parachute at an altitude of 160 m.a
A ball falls from the top of a building, through the air (air friction is present), to the ground below. How does the kinetic energy (K) just before striking the ground compare to the potential energy (U) at the top of the building? a. K is equal to ..
The wall separating the two systems is now released and allowed to move, allowing the systems to reach a new equilibrium. Calculate the final volume of each gas, and the change in total entropy
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 181 MeV, How many nuclei are in the beam
two circular current loops are located at z r2 and z -r2 parallel to the xy-plane and centered at the z-axis. each
a point charge of -1.5 c is located at the origin. a second point charge of 10 c is at x 1 m y 0.5 m. find the x and
A gear train is to be designed to transmit power from shaft 1 to shaft 2 with the following condition: Shaft 1 (driven by an electric motor) rotates at 100 revs min%u20131. Determine the input power required at shaft 1
A conductor suspended by two flexible wires as shown below has a mass per unit length of 0.040 0 kg/m. What current must exist in the conductor in order for the tension in thesupporting wires to be zero when the magnetic field is 3.60 T into the p..
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
A pool ball istraveling at 2.0 m/s towards an identical pool ball, which isinitially at rest. After thecollision, the first ball moves with a speed of 1m/s at an angle of10o with respect to thepositive x - axis. Find the velocity of the second cuebal..
An object of mass 2 kg and charge 40 microC is moving with initial speed of 5 m/s towards a fixed point charge of 30 microC which is fixed. Find the position of the object when it comes to rest
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