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A helicopter has blades of length 2.5m, extending out from a central hub and rotating at 4.00 rev/s. If the vertical component of the Earth's magnetic field is 50.0μT, what is the emf induced between the blade tip and the center hub?
The flywheel in a car is a solid cylinder with a mass of 100 kg, a radius of 11 cm, and a length of 5.0 cm. What is the kinetic energy of the cylinder
An ideal monatomic gas expands isothermally from 0.530 m3 to 1.25 m3 at a constant temperature of 670 K. If the initial pressure is 1.20 105 Pa. Find the work done on the gas
An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.310 cm. V (b) Calculate the electric potential VB at point B, x = 0.770 cm. V What is the potential difference VB - VA
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the orbit is5.00 106 m. What is the orbital speed of the second satellite
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. What is the volume flow rate of the petroleum along the pipe
A nucleus of mass number A, initially at rest, absorbs a neutron which is moving very slowly (of negligible kinetic energy). The rest mass of the neutron is 1.0087 u. An alpha particle of mass 4.0026u leaves the reaction with velocity 1.95 × 107 m..
A person who weighs 672 N is riding a 100-N mountain bike, what is the area of contact between each tire and the ground
parallel plate capacitor has capacitance of 2.0 ?F and plate separation of 1.0 mm. What is the magnitude of the greatest charge
A 5kg fish swimming 1 m/s swallows and absentmided 1kg fishswimming towards it at a velocity that brings both fish to a haltimmediately after lunch - what is the velocity (v) of the smallerfish before lunch ?
An x-ray photon with wavelength 15.0 pm is scattered at 84.0 degrees by an electron, find the resulting kinetic energy of the electron
A diver shines a flashlight upward from beneath the water at a 43.7 %u2218 angle to the vertical. At what angle does the light leave the water
Charges of 3.0 nC, -2.0 nC, -7.0 nC, and 1.0 nC are contained inside a rectangular box with length 1.0 m, width 2.0 m, What is the electric flux through the surface of the box
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