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A space traveler takes off from Earth and moves at speed 0.9900c toward the star Vega, which is 26.00 ly distant. How much time will have elapsed by Earth clocks
(a) when the traveler reaches Vega and
(b) when Earth observers receive word from the traveler that she has arrived?(c) How much older will Earth observers calculate the traveler to be (measured from her frame) when she reaches Vega than she was when she started the trip?
A conducting sphere of radius R1 is given a free charge Q. Find the electric field everywhere in space
suppose that the cross section of the hose opening is circular with a radius of 1.5 centimeters.
A long, rigid conductor, lying along the x axis, carries a current of 4.0 A in the negative direction. A magnetic field B is present, given by B = 2.5i + 8.5x2 j , with x in meters and B in mT. Calculate the k-component of the force on the 2 m segmen..
Answers for an elevator are moving down with an acceleration of 3.360 m/s. what would be the apparent weight of a 64.20 kg man in the elevator.
A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.25 ? 109Image for 1.A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators,..
A 300kg piano is being lowered into position by a crane while two people steady it with ropes pulling to the sides. What is the tension in the vertical main cable supporting the piano
A 730- boulder is raised from a quarry 149 deep by a long uniform chain having a mass of 600. What is the maximum acceleration the boulder can have and still get out of the quarry
A skier starts from rest at the top of a hill that is inclined at 10.2° with the horizontal. The hillside is 150 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient..
A wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.68 T pointing to the left. what is the diameter of the coil
What is the magnitude of the acceleration of an electron at a point where the electric field has magnitude 6656 N/C and is directed due east?
q1. for a damped oscillator with a mass of 280 g a spring constant 140 nm and a damping coefficient of 74 gs what is
A closed system is observed to have 17 objects in it. Initially, the total energy of the system is 4714 J. After 1.7 h have passed, how much total energy will the system contain
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