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The space shuttle prepares to depart the surface of the earth where the atmospheric pressure is 1 atmosphere. When the hatch door to the shuttle closes there is the same pressure on the inside of the shuttle as on the outside. The shuttle blasts off into space where there is no air (so the pressure outside the shuttle is zero). If the pressure inside the shuttle remains at 1 atmosphere, what is the force (in N) on the hatch door that tends to blow the hatch out of the shuttle? Presume that the hatch door has an area of 2 m2. After you get your answer in Newtons, convert it to pounds.
Two vectors of magnitude 22.6 N and 24.5 N act at right angles to each other. What is the magnitude of their resultant vector
A sound of frequency 200 Hz is reflected off an approaching car. What is the frequency of the reflected sound
A narrow but solid spool of thread has a radius R and mass M. compute what force must you exert on the thread
a 71 kg baseball lplayer jumps straight up to catch a line drive. If the 140 g ball is moving horizontally at 28 m/s and the catch is made when the ball player is at the highest point of his leap what is his speed immediately after stopping the ba..
Two scales on a voltmeter measure voltages up to 20.0 V and 28.0 V, respectively. Determine the coil resistance
An archer pulls the bowstring back for a distance of0.550 m before releasing the arrow. Thebow and string act like a spring whose spring constant is490 N/m. What is the elastic potential energy of the drawn bow?
A football is punted with an initial velocity of 28.7 m/s and an initial angle of 54.1o. What is its hang time
A 100 gram bullet travelling at 350 m/s strikes and sticks into a stationary 5.00 kg block of wood. The combined bullet+ block initially slides on a horizontal frictionless surface until they encounter a 30.0 degree inclined plane with a coefficient ..
An underwater scuba diver sees the Sun at an apparent angle of 45.0 degree from the vertical. Determine the actual direction of the Sun
A cylindrical shell of radius 7cm and length 2.4 cm has charge uniformly distributed on its surface. The magnitude of the electric field at a point 19 cm radically outward from its axis, at the midpoint of the shell, is 36kN/C.
A mass (m) 100g is released from rest from 1.0m above the horizontal level. Find the vertical acceleration of the mass
The speed of electromagnetic waves (which include visible light, radio, and x rays) in vacuum is 3.0 x 108 m/s. Wavelengths of visible light waves range from about 400 nm in the violet to about 700 nm in the red. What are the (a) minimum and (b) m..
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