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Q1. At sea level, at latitude where, the pendulum that takes 2.00s for a complete swing back and forth has a length of 0.993m. What is the value of g in m/s2 at the location where the length of such a pendulum is 0.970m?
Q2. Beats and Standing Waves Two loudspeakers are placed at either end of a gymnasium, both pointing toward the center of the gym and equidistant from it. The speakers emit 266 {rm Hz} sounds that are in phase. An observer at the center of the gym experiences constructive interference.
Assume the observer walks toward one speaker with a speed of 1.35 {rm m/s}.
The alpha line in the Balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56 ×10-7 meter. Compute the frequency of this light.
What are the rocket's horizontal range, greatest height, and total time of flight. The magnitude of the torque of this force on the door with respect to the hinge is most nearly .
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
pipe open at one end only has a fundamental frequency of 237 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Currently, when both pipes vibrate at their fundamental frequencies, a beat ..
What is the electric force
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
A rock of mass m = 1.0 kg is tied to a string of length L = 1.9 m and is twirled in a vertical circle. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. If the tension in the string is zero when the..
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
Then find the force between them as a function of distance h. describe why the sign of the force does (or does not) make sense to you.
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V greatest potential difference operating at 5000 rad/s .
A dockworker applies a constant horizontal force of 84.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.5\({\rm m}\) in a time 4.80\({\rm s}\)
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