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Question1
A) offer an instance of one alternative renewable energy source.
B) Write down an energy transformation equation for the energy produced by this energy source transforming into electrical energy.
c) Listing one benefit and one drawback of this alternative renewable energy source.
Question2
A length of aluminium wire has a resistance of 24.0 Ω at 18.0°C. When wire is warmed in an oven and reaches thermal equilibrium, the resistance of wire increases to 40.2 Ω.
(a) Neglecting thermal expansion, find out the temperature of the oven. (b) Qualitatively, how would thermal expansion is expected to influence answer?
What is the little distance between the speakers for which the interference of the sound waves is destructive.
A car owner forgets to turn off the headlights of his car while it is parked in his garage. how long will it take the battery to completely discharge
Dynamics of Toboggan and Block on Ice, A 4.0 kg toboggan rests on a frictionless icy surface, and a 2.0 kg block rests on top of the toboggan. The coefficient of static friction µs between the block and the surface of the toboggan is 0.58
A hollow spherical shell has mass 7.85kg and radius 0.220m. What is the kinetic energy of the shell after it has turned through 7.00rev
A proposed space station includes living quarters in a circular ring 52.0 m in diameter. At what angular speed should the ring rotate
The car drives straight off the edge of a cliff that is 57 m high. The investigator at the scene of the accident notes that the point of impact is 130 m from the base of the cliff.
An elevator can lift a 113 N aircraft a distance of 28 meters in 10 s. what is the power output of the elevator
What is the speed of the second asteroid? Now suppose that the first and second asteroids carry charges of 3.68 C and -3.68 C, respectively. How fast would the second asteroid have to be moving in order to occupy the same circular orbit as before?
with what speed would the arrow leave the bow.
Assume a light ray hits the surface of the water in a container 39 inches deep at an angle of incidence of 18 degrees. Determine the time taken for the light to hit the bottom of the container
Jack wants to build a radio to tune to a station at 520 MHz. He has available 0.25 micro hertz inductor, What value of capacitance should be used
If the initial temperature of the horseshoe is 450 °C, and the initial temperature of the water is 45° C, what is the equilibrium temperature of the system? Presume no heat is exchanged with the surroundings.
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