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A 54kg ice skater moving at 6.4m/s glides to a stop. Assuming the ice is at 0deg C and that 50% of the heat generated byfriction is absorbed by the ice, how much ice melts?
At a certain location, the Earth's magnetic field has a magnitude of 5.8×10^-5, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140cm by 77cm
Laser light is shown through a diffraction grating with a line density of 880 lines per mm. What is the wavelength of the laser
A roller in a printing press turns through an angle given by , where =3.20 and =0.500. What is the maximum positive angular velocity
On an icy (nearly frictionless) street a 600 kg car traveling straight east at 5 m/s collides with a 1000 kg car traveling straight north at 3 m/s. what is the final speed of the second car
Consider Iron asteroid (density 7900 kg/m^3) shaped like a cylinder 5.0 km long and 3.0 km in diameter, How much fuel is required to spin up the asteroid
A plane is flying in the horizontal plane. At time t1 = 0 s with the components of its velocity are vx= 100 m/s and vy = 120 m/s. At time t2= 20 s the components are vx = 80 m/s and vy = 142 m/s.
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging
A jet plane traveling 1840km/h (511m/s ) pulls out of a dive by moving in an arc of radius 5.40km , what is the planes acceleration in g's?
A projectile is launched at 64 degrees at 63.7 m/s from the top of a hill. How far down the hill does the projectile hit
A particle moves at a constant acceleration along the curve x2 = x1/100 from point A to point B. The velocity of the particle at A is 10 m/sec, and 10 sec later at point B it is traveling at 50 m/sec. Determine the total acceleration of the particle ..
A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 6.50 rad/s about a fixed vertical axis through its center. A 0.250-kg piece of putty is dropped vertically onto the cylinder at a point 0.900 m from the ce..
A tight uniform string with a length of 1.80m is tied down at both ends and placed under a tension of 100N/m. What is the mass of the string
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