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A 1500-kg satellite initially moving at 10 m/s to the left burns its rocket engine for 4.0 seconds. After the burn, the satellite is moving at a final velocity of 20 m/s to the right. What was the impulse on the satellite during the burn?
Here on Earth you hang a mass from a vertical spring and start it oscillating with amplitude 1.9 cm. How long does it take for the mass to make one round trip
The sun appears to move across the sky, because the earth spins on its axis. To a person standing on the earth, the sun subtends an angle of sun = 9.30 x 10-3 rad (see Conceptual Example 2). How much time (in seconds) does it take for the sun to move..
A jet is circling an airport control tower at a distance of 24.5 km. Find the distance traveled (in meters) by the jet as the observer watches the nose of the jet cross from one side of the moon to the other
A small airplane needs to reach a speed of 300 km/h to take off. What is the minimum length of a runway in m that can allow the plane to takeoff if it accelerates at the rate of 4.0 m/s2
q1. a loudspeaker of mass 15.0 is suspended a distance of h 2.30 below the ceiling by two cables that make equal
A unit vector lies in the xy plane, at an angle of 138 degrees from the +x axis, with a positive y component. What is the unit vector
To warm up for a match, a tennis player hits the 56.0 ball vertically with her racket. what impulse did she impart to it
A bullet of mass 4.00g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.240. What was the initial speed of the bullet
A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
the n = 2 state of hydrogen has a lifetime of about 10^-8 sec. Suppose the atom jumps from the n=2 state to the ground state, what is the uncertainty in the energy of the photon that is emitted
Ricardo and Maria both move to the center of the canoe. Ricardo notices that the canoe moves a distance d = 0.37 m relative to a rock that is stationary in the water. What is Maria's mass in kg
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. In one such accident, a 1850car traveling to the right at 1.40 collides with a 1400 car going to the left at 1.10 ..
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