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A device for training astronauts and jet fighter pilots is designed to rotate a trainee in a horizontal circle of radius 12.0 .If the force felt by the trainee on her back is 7.45 times her own weight, how fast is she rotating? Express your answer in . Express your answer (29.6) in rev/s.
A parallel-plate capacitor has an area of 100 x 100?m^2. Calculate the capacitance values for two distances between the electrode plates: 1 and 0.5 µm. The medium is air. If the bias (voltage) in (a) is 3V, what is the attractive force?
A certain loudspeaker system emits sound isotropically with a frequency of 2290 Hz and an intensity of 0.795 mW/m2 at a distance of 5.43 m. Assume that there are no reflections.
If the gas is irradiated with monochromatic light of 466 nm wavelength, what is the wavelength of the Raman scattered light
For a car moving at speed v, the force of air drag on the car is proportional to v^2 . Suppose the power output of the car is doubled, by what factor is the speed of the car increased
You are an astronaut (m = 90 kg) and travel to a planet that is the same mass and size as Earth, What is your apparent weight at the equator of this planet
When a force of 19.0 N is applied to a spring, it elongates 0.0858 m. find out the period of oscillation of a 4.0 kg object suspended from this spring.
A child is walking along the sidewalk at a constant speed of 1 m/s while pulling his dog sitting in a wagon. what is the frictional force exerted by the wagon on the dog
A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 588 N. Determine the weight of the person
A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 13 degree incline. His speed at the bottom is 13 m/s. What is the length of the incline
Two capacitors, C1 = 32.0 µF and C2 = 4.00 µF, are connected in parallel and charged with a 110-V power supply. Calculate the total energy stored in the two capacitors
The current density inside a long, solid, cylindrical wire of radius a is in the direction of the central axis and its magnitude varies with radial distance r from the axis according to J = br2, where b is a positive constant.
An 8.8 mH inductor is connected to an ac generator (10.0 V rms, 600 Hz). Determine the peak value of the current supplied by the generator
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