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You have your bicycle upside down for repairs. The front wheelis free to rotate and is perfectly balanced except for the 25gvalve stem. If the valve stem is 32cm from the rotation axis and islocated 24o below the horizontal, what is the resulting torque about the wheel's axis?
A Carnot engine has a power output of 240 kW. The engine operates between two reservoirs at 9 C and 661 C. How much thermal energy is absorbed each hour
A 8.50-kg block of ice, released from rest at the top of a 1.41--long frictionless ramp, slides downhill, reaching a speed of 2.71 at the bottom. What is the angle between the ramp and the horizontal
q1. a simple harmonic oscillator consists of a block of mass 1.80 kg attached to a spring of spring constant 107 nm.
a 500 omh resistor and a real inductor with a pure inductance L and an internal resistance of r are in series with a generator with a voltage of V = 10.0V, What are the values of L and r
An undersea research chamber is spherical with an external diameter of 4.60m . The mass of the chamber, when occupied, is 51100kg. What is the buoyant force on the chamber
a horizontal rifle is fired at a bulls -eye. the muzzle speed of the bullet is 670ms the gun is pointed directly at the
question1a car moves along a road in such a way that the distance x travelled in a time t is given byx a bt 3where a
A spy satellite is in circular orbit around Earth. It makes one revolution in 6.01 hours. How high above Earth's surface is the satellite
If the elevator's descending speed is measured at 10 m/s at a given point, but its speed is decreasing by 2.7 m/s2, what is a force exerted by the scale.
The coefficient of friction between the road and the tires of a 900kg car is 0.888. how much does the speed of the car have to be reduced
1 a coil made of 5 loops of wire with a radius of 10.0 cm rotates about its diameter in a uniform magnetic field of
Two satellites are in circular orbits around a planet that has radius 9.00*10^6 m. One satellite has a mass 68.0 kg, What is the orbital speed of the second satellite
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