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Water flows trough a normal garden hose at 2 m/s. If a nozzle at the end of the hose reduces the cross sectional area to 5% of its original value, how fast does the water emerge from the hose nozzle?
A soccer player kicks a ball from ground level with an initial velocity of 25 m/s at an angle of 30° above the horizontal. What angle does the velocity vector make with the horizontal
Air bags are designed to deploy in 10 ms. Estimate the acceleration of the front surface of the bags as it expands. Express your answer in terms of the acceleration of gravity g
A tennis player swings her 1000g racket with a speed of 11m/s, If the tennis ball and racket are in contact for 12ms, find the average force that the racket exerts on the ball
a girl uses a jump rope made of flexible wire. she holds the ends of the rope in extended hands, What is the amplitude of oscillation of this alternating emf
If a point charge is located at the center of a cube and the electric flux through one face of the cube is 5.0 Nm 2/C, what is the total flux leaving the cube?
A marble is thrown horizontally with a speed of 19 m/s from the top of a building. From what height above the ground was the marble thrown
You have two containers of a monatomic ideal gas that are intially at the same Pressure, Volume, and Temperature. What is the difference in work done in these processes, 1 - 2
A laser peripheral iridotomy is a procedure for treating an eye condition known as narrow-angle glaucoma, in which pressure buildup in the eye can lead to loss of vision. How many photons does the laser deliver
The length of a simple pendulum is 0.77 m and the mass of the particle (the "bob") at the end of the cable is 0.25 kg. What is the angular frequency of the motion
illustrate what is the new horizontal distance L between the base of the slide and the splashdown point of the person?
Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from P1 = 2.5atm to P2 = 1.3atm, Calculate the total heat flow into or out of the gas
Calculate the absoute pressure at the bottom of a fresh-water lake at a depth of 28.9 m. Assume the density of the water is 1.00x10^3 kg/m^3 and the air above is at a pressure of 101.3 kPa
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