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A person bounces up and down on a trampoline, even as always staying in contact with it. The motion is simple harmonic motion, and it takes 2.49 s to complete one cycle. The height of each bounce above the equilibrium position is 38.7 cm. Decide (a) the amplitude (b) the angular frequency of the motion. (c) What is the maximum speed attained by the person?
A small coil has a cross section of 4.5 cm2 and consists of 14 turns of wire. If the loop carries a current of 100 mA, what is the torque required to hold the loop
If she is served 200 of coffee at 85 in a well-insulated container, how much ice at 0 must she add to obtain a final temperature of 33.
A uniform meter stick has a 45.0 g mass placed at the 20 cm mark. If a pivot is placed at the 42.5 cm mark and the meter stick remains horizontal in static equilibrium, what is the mass of the meter stick?
a 2.95 block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0380 . the spring
Two children fighting over a toy pull on the toy in different direction. What is the magnitude of the net force on the toy
Bubba has a tuning fork with a frequency of 445 Hz. Assuming the speed of sound in his lab is 350. m/s, what length tube is required to find the resonant point of his fork
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of 10.0 cm. What is the angular magnification of the telescope
A small mirror is attached to a vertical wall, and it hangs adistance of 1.59 m above the floor. The mirror is facing dueeast, and a ray of sunlight strikes the mirror early in the morningand then again later in the morning.
A -6.00 µC charge is moving with a speed of 7.80*104 m/s parallel to a very long, straightwire. The wire is 5.00 cm from the charge and carries a current of78.0 A in a direction opposite to thatof the moving charge. Find the magnitude and directio..
A 50.4-g golf ball is driven from the tee with an initial speed of 40.9 m/s and rises to a height of 25.7 m. determine the kinetic energy of the ball at its highest point
When a nucleus of ^235 U undergoes fission, it breaks into two smaller, more tightly bound fragments. Calculate the binding energy per nucleon for the fission product
an electron gun emits 17 times 1014 electrons per second that travel at a speed of 0.03 c. the electron beam has a
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