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A 900 Hz sound wave is produced on the source side of the tube shown in the figure. The sound travels to the right along both the straight and the curved path to a detector. (a) What is the smallest value of r such that a minimum in sound intensity will be heard at the detector end? (b) What are the two smallest values of r such that a maximum in sound intensity will be heard at the detector end?
Water is supplied to an office building 24.0 m high through a pipe at ground level. Find the minimum pressure in the supply pipe
A block hangs in equilibrium from a vertical spring. When two other identical blocks are added, the original block sags by 5.0 cm. What is the oscillation frequency of the three-block system
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.11 eV. What is the width of the square well
Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 2R from the center
a .45 kg mass is attached to a spring with a spring constant of 3 nm. the other end of the spring is attached to a
Two ropes are pulling upward on a large crate. The weight of the crate is 420. N. The tension in the left rope is the same as the tension in the right rope. If the crate is moving upward at a constant speed, what is the tension in the left rope?
A projectile is fired from the surface of the Earth with a speed of 200 meters per second at an angle of 30 degress above the horizantal. If the ground is level, illustrate what is the maximum height reached by the projectile?
A volleyball is spiked so that its incoming velocity of +4.2 m/s is changed to an outgoing velocity of -24 m/s. What impulse does the player apply to the ball
A bat is emitting a sound of 39KHz frequency while flying toward a flat wall. The bat is moving at1/50 of the speed of sound which is 343m/s. What freq does the bat hear reflected off the wall
A 15.25 kg object moving east at 2.50 m/s collides with and bounces off of a 28.75 kg object moving west at 1.75 m/s. what is the final velocity of the lighter object
A 4.00 kg model rocket is launched, expelling 46 g of burned fuel from its exhaust at a speed of 590m/s. What is the velocity of rocket after the fuel has burned? Hint: overlook the external forces of gravity and air resistance.
Megan's mass is 27 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 m/s at the bottom of the slide. How much work was completed by friction on Megan? Imagine that air resistance is negligible.
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