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Q. A space vehicle is traveling at 5400 km/h relative to Earth while the exhausted rocket motor is disengaged and sent backward with the speed of 81 km/h relative to the command module. The mass of the motor is four times the mass of the module. What is the speed (in km/h) of the command module relative to Earth just after separation?
A golf ball strikes a hard, smooth floor at an angle of θ = 31.6°, rebounds at the same angle. The mass of the ball is 0.043 kg, and its speed is 45m/s just before and after striking the floor. What is the magnitude of impulse applied to the golf bal..
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
How far does Tinki drive before passing David.
The mass of mars is 6.419 times 10 26 square kg and the mass of a single proton is 1.673 times 10 negative 27 square kg. assuming mars is made entirely of protons, how various protons would make up mars.
What is the magnitude and direction of the magnetic field
An archer puts a 0.33 kg arrow to the bowstring. An average force of 183 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
compute the distance x the spring was compressed.
Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
What is the maximum height, y2, if the object is thrown with a speed of v2 = 1.99v1 from the surface of Jupiter's moon Io? The acceleration due to gravity on Io is g2 = 1.79 m/s2. Give the reply as a multiple of y1.
How much energy is dissipated during the 5 minute interval.
The quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies with time according to equation q = 7t3 + 5t + 6, where t is in seconds.
What is the speed of the 2 cars as they move together after the collision.
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