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An electric circular saw is designed to reach its final angular speed, starting from rest, in 1.40 s. Its average angular acceleration is 325 rad/s2. Obtain its final angular speed.
You have a 56.9-mF capacitor initially charged to a potential difference of 10.1 V. You discharge the capacitor through a 4.77-Ω resistor. What is the time constant? After what multiple of the time constant does the potential difference reach 2.47 V.
Muonium Muonium is a hydrogen-like atom in which the electron is replaced with a muon, a fundamental particle with a charge of -e and a mass equal to 207me. What is the Bohr radius of muonium
A 53.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.30m. what is the diameter of the football players' piston
Compute the coefficient of kinetic friction
question1a 60.0-kg projectile is fired at the angle of 30.0deg above the horizontal with an initial speed of 1.28 102
The label on a candy bar says 440 Calories. Assuming a typical efficiency for energy use by the body, how high could she go
A 6.5 x 104-kg space probe is traveling at a speed of 14000 m/sthrough deep space. Retrorockets are fired along the line of motionto reduce the probe's speed. What is the final speed of the probe
A batter hits a baseball m = 0.48 kg from rest with a force of F = 86 N, The ball is in contact with the bat for t = 0.26 s. How far did he ball travel horizontally in meters
A small galvanometer coil of resistance R = 20 ? and full-scale deflection at 1 mA is connected in series with a 4980 ? resistance to build an analog voltmeter
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
A very large water tank has a small outlet pipe very near its base. What is the rate at which water empties from the tank
a 5 litre pressure vessel contains 200g of propane. using the peng robinson eos calculate the pressure in the vessel
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