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Consider an airplane window (area 0.33 m2). If the pressure inside the plane is atmospheric pressure and the pressure outside is 21% of Patm, what is the force on the window? Ignore the velocity of the airplane (i.e., ignore Bernoulli's effect).
two blocks connected by a light cord over a pulley. This apparatus is known as an Atwood's machine. what is the speed of the lighter block
On a cold day, 25000 J of heat leaks out of a house. The inside temperature is 22 °C, What is the increase in the entropy of the universe that this heat loss produces
How much is the spring compressed?
A solar cell generates a potential difference of 0.320 V when a 445.0 ? resistor is connected across it and a potential difference of 0.504 V, find the internal resistance of the cell in Ohms
State the maximum height in terms of a, t_1, and/or g. Note that in this problem, g is a positive number equal to the magnitude of the acceleration due to gravity.
A plane is flying in the horizontal plane. At time t1 = 0 s with the components of its velocity are vx= 100 m/s and vy = 120 m/s. At time t2= 20 s the components are vx = 80 m/s and vy = 142 m/s.
The block in the figure oscillates sinusoidally between x = +a and x = %u2212a. The coordinate is x(t) = a cos(wt). Calculate the maximum speed
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
what is the entropy change of the gas, heated in a steady-flow process at approximately atmospheric pressure,
Suppose I have three small objects of equal mass m. I place them on a massless, rigid, circular hoop of radius R. what is the moment of inertia for the whole system
q1. a 500 g rubber ball is dropped from a height of 10 m and undergoes a completely elastic collision with the earth.a
A standing wave is in a open end tube. The tube length is 1.80m, determine the fundamental frequency
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