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An interplanetary spaceship passes through the point in space where the gravitational forces from the moon and the earth on the ship exactly cancel.
How far from the center of the earth is it? Use the data in Appendix E of the textbook.
A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ? = 0.180 kg/m3). How long will it take for the top of the shell to reach the water surface
You drive your 1,465-kg car at a constant speed of 25 mph down a ramp that has a grade of 12 %. Define positive direction in the forward direction
two particles with Q1=50uc and Q2=84uc are initially separated by a distance of 2.3m, what is the change in electric potential energy
A rectangular loop consists of N = 100 closely wrapped turns and dimensions a = 0.4m and b= 0.3m. What is the expected direction of rotation of the loop
A 16.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 170-V generator. What is the maximum value of the rms current?
A tourist takes a picture of a mountain 14 km away using a camera that has a lens with a focal length of 50 mm, What is the ratio of the height of the mountain's image on the camera's image
one block of mass m slides without friction on horizontal table. The block is attached to one end of a massless spring of equilibrium length L0 and spring constant k, Define the effective potential energy Veff. Sketch the U and Veff potential energ..
A child looks at a reflective Christmas tree ball ornament that has a diameter of 9.0cm, How far is the child's face from the ball
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. what is the net rate of energy radiated from the sphere?
A small metal ball is given a negative charge, then brought near (i.e., within a few millimetres) to end A of the rod. What happens to end A of the rod when the ball approaches it closely this first time.
A billiard ball moving at 5.30 m/s strikes a stationary ball of the same mass. Find the velocity (magnitude and direction) of the second ball after collision
A person is riding a bicycle, and its wheels have an angular velocity of +19.0 rad/s. How much time does it take for the bike to come to rest
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