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A 54kg ice skater moving at 6.4m/s glides to a stop. Assumingthe ice is at 0deg C and that 50% of the heat generated by frictionis absorbed by the ice, how much ice melts?
A hot air balloon rises from the ground with a velocity of(2.2 m/s)yhat. A champagne bottle is opened to celebrate takeoff, expelling thecork horizontally with a velocity of (5.6 m/s)xhat relativeto the balloon. When opened, the bottleis 5.0 m abo..
A large arm model was constructed with a free arm which weights 1 kg, an additional weight of 1 kg is supported by the arm at a distance of 12 cm from the pivot. What is the total torque of the resistance
At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at 5.00 m/s. find the magnitude of the average friction force acting on the sled while it was moving
A spaceship moves away from Earth at a speed 0.297 c, Determine the speed of the shuttle relative to Earth
A 33.2 m steel wire and a 25.6 m copper wire both with 1.00 mm diameters, are connected end to end and are stretched to a tension of 120 N. How long does it take the transverse wave to travel the entire length of the two wires.
Jupiter emits radio waves and also visible light (reflected Sunlight). Which of the following statements about the light we detect from Jupiter is true.
A pendulum of length 130 cm swings with an amplitude of 1.6 cm. Its mechanical energy is 5.0 mJ. What is the mechanical energy of the same pendulum
Find the speed of an orbiter in a circular orbit that is just above the surface of a planet, given that the orbiter's acceleration is equal to the planet's gravitational acceleration of 2.13 m/s2
An engine with an output of 300 W has an efficiency of 35.0 %. It works at 13.00 cycles/s. How much work is done in each cycle
In 1916 Milikan used measurements of the kinetic energy of photoelectrons to detemine plancks constant
The planet Uranus has a satellite, Ariel, which travels in an orbit of radius 1.910×108 m with a period of 2.52 days. Calculate the mass of Uranus from this information
A converging lens with two convex surfaces has a front surface with radius of curvature of 11.3 cm; What is the focal length of the lens
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