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If you were on a spaceship traveling a 0.5c away from a star, at what speed would the starlight pass you?
a positive charge of -4 microcoulombs is llocated at the center of a spherical shell of inner radius 2cm and outer radius 3cm, what is the total charge on he inner shell
A 25-g rifle bullet travelling 280-m/s buries itself in a 3.6-kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
If the coefficient of static friction is 0.500, what minimum force magnitude is required from the rope to start the crate moving
Setting a world record in a 100m race, Maggie and Judy cross the finish line in a dead heat, both taking 10.0 s. Accelerating uniformly, Maggie took 2.0 s and Judy 2.5 s to attain maximum speed that they maintained for the rest of race.
A series RLC circuit has the following values: L =20mH, C=100 nF, R=20 Ohms, calculate the average power delivered to this RLC circuit
At 18°C, a rod is exactly 20 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 285°C, where the rod now measures 20.21 cm on the same ruler. What is the coefficient of linear expansion for the material of which the rod ..
A proton accelerates from rest through 1500 volts. the proton then enters a region of space where the magnetic field is 0.3 tesla (and this field is perpendicular to the velocity). calculate the radius of the resulting circular motion?
What is the coefficient of static friction among the coin and the turntable? Express your answer using two significant figures.
Their motions have equal periods, but the radius of skater A's circle is half that of skater B's circle. Evaluate the ratio of the magnitudes of the forces acting on each skater?
Two 1.6V. batteries are connected together in series to a bulb whose resistance is 60 ohms. How many electrons leave each battery per minute
What is the percent change in momentum of a proton that accelerates from 0.42c to 0.91c?0
A cart of mass M = 1.2 kg can roll without friction on a level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.5 kg. The cart is released from rest, allowing it to roll, pulled by falling h..
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