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An object attached to a spring has simple harmonic motion with amplitude of 3.00 cm. When the object is 1.73 cm from the equilibrium position, what fraction of its total energy is potential energy?
a) three-quarter, b)two-thirds, c)one-quarter, d)one-third,e)one-half
A ball rolling along at speed v without slipping on a horizontal surface while it comes to a hill that rises at a constant angle above the horizontal.
A container holds 1.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 7.7x10-3 kg bullet with a speed of 630 m/s
a closed and elevated vertical cylindrical tank with diameter 1.70 m contains water to a depth of 0.800 m . a worker
A coal fired plant generates 600 MW (5.18 x 10^13 J/day) of electric power. The plant burns 4.8 x 10^6 kg of coal each day. what is the ideal efficiency of this plant
In a science fiction movie, a 100 g base ball travelling with a speed of 60 m/s and an electron travelling at a speed of 1.2 x 10^8 m/s are approaching each other for a head-on collision
if the area of the plates of a parallel plate capacitor is halved and the separation between the plates tripled then by
q1. a car with a mass 1865 kg is travelling west and slows down uniformly to 8.5 ms over a distance of 108 m. calculate
the motor in a refrigerator has power p. if the freezing compartment is at temperature tl and the outside air is at
Find the force P that must be applied to a piston of area 12.10 cm2 to produce sufficient fluid pressure to support a car weighing 10,801 N by means of a column of fluid of cross sectional area 275 cm2
A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should ..
During a mountain climbing trip, it is observed that the water used to cook a meal boils at 90°C rather than the standard 100°C at sea level
An object moving in simple harmonic motion has an amplitude of0.03m and a maximum acceleration of 55m/s^2. What is the frequency of the system
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