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Consider a spring that has a force constant k, originally at its relaxed length. According to special relativity theory, what happens to the mass of the spring if the spring is stretched by a distance x, and then held in place?
What is the change in mass of the spring (in kg) if the force constant is 150 N/m and the stretch is x = 15.8 cm?
a mass attached to a spring oscillates according to the equation xt 24sin16t 0.50 where x is in cm and t in seconds.
A man of mass M1 = 81 kg is standing on a M2 = 6960 kg railroad flatcar that rolls without friction to the right with speed 3.6 m/s. Calculate the change in velocity (in m/s) of the flatcar, if the man runs to the left so that his speed relative t..
A 5-turn coil has square loops measuring 0.200 m along a side and a resistance of 3.00 ohms. It is placed in a magnetic field that makes an angle of 40.0° with the plane of each loop. The magnitude of this field varies with time according to B= 2.00t..
The cable at the end of the crane boom exerts a force of 250 lb on the boom as shown. Express F as a Cartesianvector.
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an astronaut on the moon fires a projectile from a launcher on a level surface so as to get the maximum range. if the
A 28.0 g object moving to the right at 18.0 cm/s overtakes and collides elastically with a 9.0 g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision
A hospital physicist measure the strength of a cobalt - 60 X-Ray machine every year. His result over a six year period are shown in the table. Strength is measured in MBq (megabecquerels) or millions of counts per second. Describe the relationship..
A cart of mass 1.91kg traveling 1.29m/s inelastically strikes a stationary mass of 0.41kg. What is the total momentum of the system
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