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(1) Using the actual value for specific heat of water and change in temperature from your experiment:
(a) Calculate the actual power of your heater.
(b) What is the percent error from the given power by the manufacturer.
A boy of mass 48.7 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.4 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 11.1 m/s. discover the final velocity of the skateboard.
What is the difference in torque when the compression-suction order is 1-4, 5-2, and 3-6 and explain why removing mass is better than adding a counter balance mass.
A 15kw motor provides power for an elevator of a building. What is the minimum time needed for the elevator to rise 30m, when its total mass when loaded is 900k
Illustrate what angular speed must such a cylinder have so that the centripital acceleration at its surface equals the free-fall acceleration on Earth?
a parallel-plate capacitor consists of two parallel square plates that have dimensions 1.0 cm by 1.0 cm. if the plates
A hair drier uses 14 A at 121V. It is used with a transformer in England, where the line voltage is 231 V. What should be the ratio of the turns of the transformer (primary to secondary)?
An 8.68-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 26.3° with the horizontal. find the distance the block slides before coming to rest
A solenoid 3 centimeter long consists of 2636 loops of wire. If the magnetic field inside the solenoid is 3.0 T, find the magnitude of the current that flows through it
A stationary motion detector sends sound waves of frequency 0.135 MHz toward a truck approaching at a speed of 49.2 m/s. What is the frequency of the waves reflected back to the detector? (Takethe speed of sound to be 343 m/s.)
A large wood block is being pushed across the floor with a force of 180-N to the right. The block has a mass of 145.00 kg. The frictional force is 45-N. What is the acceleration of the block.
A 515-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.45 V are connected in series. What is the RC time constant?
A picture hangs on a nail, the tension T in each string segment is 3.5N, what is the weight of the picture
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