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If a steel ball with half the mass of the steel ball you used in class was used, what would its initial horizontal velocity be?
Boiling Water at High Pressure. When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20 multiply.gif 106 J/kg, Compute the increase in internal energy of the water
Two masses of 4.00 kg each, connected by a string, slide down a ramp making an angle of 45° with the horizontal. The coefficient of kinetic friction between m1 and the ramp is 0.33. The coefficient of kinetic friction between m2 and the ramp is 0...
A 625 kg woman climbs a staircase that rises at 48 degrees above the horizontal and is 4.25 m long. How much work has gravity done on her as she climbed the stairs
Standing on the surface of a small spherical moon whose radius is 5.71·104 m and whose mass is 6.71·1018 kg, an astronaut throws a rock of mass 1.85 kg straight upward with an initial speed of 28.5 m/s.
A plastic light pipe has an index of refraction of 1.42. For total internal reflection, what is the minimum angle of incidence if the pipe is in the following media
A solenoid is made of N=2500 turns, has a length L=10cm, and a radius R=0.5cm. What is the current through the wires of the solenoid
This procedure has actually been used to "weigh" astronauts in space. A 42.5- chair is attached to a spring and allowed to oscillate. What is the mass of the person
The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m. What is the speed of the lightest star
Include in your answer why notification is required and identify the relevant legislation and documentation governing the requirement. who should the notification be reported to and explain the consiquences of not reporting in each circumstances.
A section of hollow pipe and a solid cylinder have the same radius and mass. Which has the most rotational kinetic energy
An astronaut stands on the steps of her spaceship that is resting on the surface of planet x and drops a rock from a height of 4.5 metres. The rock hits the surface in 0.83 s. Determine the magnitude of the acceleration due to gravity on the surfa..
Assume that at sea-level the air pressure is 1.0 atm and the air density is 1.3 kg/m3. What would be the height of the atmosphere if the air density were constant
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