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A 10.0 kg rocket is fired vertically. Its fuel gives ita kinetic energy of 1960J. What additional height will the rocket rise?
a piece of angle iron is hinged at point a. determine the resultant torque at a due to the two acting forces. replace
A steam pipe is to transport 200 lbmls of steam at 200 psia and 600 F. Calculate the minimum diameter this pipe can have so that the steam velocity does exceed 59 ft/s.
the magnetic field that can be obtained in a superconducting magnet is about 5t. assume an accelerator that follows the
three resistors are connected in series across a battery. the value of each resistance and its maximum power rating are
q1. an artillery shell is fired with an initial velocity of 370 ms at 76deg above the horizontal. to clear an avalanche
Calculate the speed of sound for a wave whose wavelength is 2.5 m and whose frequency is 270 Hz
A string on a musical instrument is 20cm long and is fastened at both ends. The total mass of the string is .02 kilograms. We desire to cause the string to vibrate at a fundamental tone of 500Hz when it is plucked or bowed. To what tension should ..
Find the final velocity of the two balls if the ball with velocity v2i = ?20.9 cm/s has a mass equal to half that of the ball with initial velocity v1i = +32.1 cm/s. (Indicate the direction with the sign of your answer.)
A parallel plate capacitor with plates of area 320 cm.^2 is charged to a potential difference V and is then disconnected from the voltage source, What is the charge on the positive plate of the capacitor
Suppose you pour water into a container until it reaches a depth of 18. What is the pressure at the bottom of the container
an 8.1g bullet is fired with a velocity of 109ms into a 98g block of wood at rest on a frictionless surface. the bullet
A person bending forward to lift a load "with his back" (Figure (a)) rather than "with his knees" can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal support..
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