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A marble of mass 6.40 g moving to the right with speed 0.450 m/s undergoes a head-on elastic collision with a second marble of mass 2.30 g that is initially at rest. What is the speed of the 6.40-g marble just after the collision?
The spring in a clothespin is compressed 0.40 cm, storing energy in the form of spring potential energy. If the spring is compressed twice as far, the spring potential energy increases with 0.0046 J. What is the force constant, k, for this spring?
When the tips of the rotating propeller of an airplane have a linear speed greater than the speed of sound, the propeller makes a lot of noise, which is undesirable. If the length of the propeller is 2.354 m
A solid shaft 125mm did transmits 600kW at 300 revolutions/minute. It is also subjected to a bending moment of 9kN-m and to an end thrust. If the maximum principal stress is limited to 80MPa, determine the permissible end thrust.
An FM radio station generates radio waves that have a frequency of 101.3MHz. What is the difference in wavelength between the waves emitted from the two stations
A diver makes 2.5 revolutions on the way from a 9.0-m-high platform to the water. find the diver's average angular velocity during a dive
two objects are orbiting each other under the influence of the force of the gravitation force between them. object 1
A sample of neon gas has its volume tripled and its temperature held constant. What will be the new pressure relative to the initial pressure
A 45.0 kilogram lady is standing on a 160 kilogram plank. Estimate her velocity relative to the surface of ice
The de Broglie wavelength of a 1 mg grain of sand being blownby the wind is 3x10-29 m. What is the speed of the grain of sand
When constructing a roller coaster, the designer wishes the riders to experience weightlessness as they round the top of the hill. Find how fast the car must be going
A student throws a ball vertically upward such that it travels 6.5m to its maximum height. What is the ball's average velocity
A coating is applied to a lens to minimize reflections. The index of refraction of the coating is 1.66 and that of the lens is 1.56. what is the largest wavelength that is minimally reflected
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