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A 0.22 m(micro)F capacitor is charged by a 1.5 V Battery. After being charged the capacitor is connected toa small electric motor. Assuming 100% efficiencya) to what height can the motor lift a 5.0 g mass?b) What initial voltage must the capacitor have if it is to lift a 5.0g mass through a height of 1.0 cm?
A football player kicks a 0.41-kg football initially at rest;and the ball flies through the air. what is the football's change in momentum
A block with mass m =7.5 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.25 m. what is the magnitude of the net force on the block
By how much will the earth slow down if its two ice caps melt. Find out how much water the two ice caps contain
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB for a period of 9.00 hours, How much sound energy is incident on the eardrum during this time
A 2.00-liter aluminum cylinder at 5°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 59°C, how much gasoline spills out.
When two tuning forks of 128 Hz and 149 Hz, respectively, are sounded simultaneously, how various beats per second are heard.
Light from the sun arrives at the earth, an average of 1.50×1011 m away, at the rate of 1.40×103 W/m2, How many photons per second does it emit
A sign (mass 1700kg ) hangs from the end of a vertical steel girder with a cross-sectional area of 0.013m^2, What is the stress within the girder
Monochromatic light is incident on a grating that is 75 mmwide and ruled with 50,000 lines. What is the wavelength of the incident light
A light string can support a stationary hanging load of 27.0 kg before breaking. What range of speeds can the object have before the string breaks
A mini-fridge needs to maintain a temperature of 277 K. The air outside the mini-fridge has a temperature of 301 K. What is the coefficient of performance of this mini-fridge
A 10 kg hammer strikes a nail at a velocity of 8.3 m/s and comes to rest in a time interval of 8.0 ms. What is the impulse given to the nail
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