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The maximum pressure difference which can be withstood by the membrane of the eardrum is 30 kPa.
A. Determine the maximum absolute external pressure that could be safely endured given that the pressure inside the ear is 1.06 atm?
B. Determine the minimum absolute external pressure that could be safely endured?
A disk with a 1.0-m radius reaches a maximum angular speed of 18 rad/s before it stops 30 revolutions (220 rad) after attaining the maximum speed
The Mars Reconnaissance Orbiter circles the red planet with a 119 period. The mass of Mars is 6.42*10^23 , the radius is 3.38*10^6. What's the spacecraft's altitude?
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
A fighter jet going 350 km/h dives at an angle of 25o to the vertical. Compute the velocity of the bomb just before it hits the ground
a 5.0 kg object is supported by an aluminum wire of length 2.6m and diameter 2.2mm. How much will the wire stretch
A 12 kg weather rocket generates a thrust of 250 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 560 N/m, is anchored to the ground. What is the rocket's speed while the s..
White light, with frequencies ranging from 4.20×1014 Hz to 7.74×1014 Hz, is incident on a calcium surface. Calculate the lowest frequency for which no electrons are ejected
An 16--long bicycle crank arm, with a pedal at one end, is attached to a 23--diameter sprocket, the toothed disk around which the chain moves. A cyclist riding this bike increases her pedaling rate from 65 to 95 in 12 . What length of chain passes ov..
q1. a rock is thrown directly upward from the edge of the roof of a building that is 50 m meters tall. the rock misses
A spring in a toy gun has a spring constant of 9.15 N/m and can be compressed 18.0 cm beyond the equilibrium position. Find the muzzle speed of the pellet
A bullet with mass 4.59 g is fired horizontally into a 1.958-kg block attached to a horizontal spring. Find the initial speed of the bullet-block system
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 24.3 m down the road. What was the driver's reaction time (i.e., the time that elapsed before he engag..
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