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a wire has a diameter fo .200mm and stretches .20% when a force of 6.28N is applied to it. what is the elastic (Young's) modulu of this wire?
A steel tank is completely filled with 3.00 m3 of ethanol when both the tank and the ethanol are at a temperature of 31.5?C. what additional volume of ethanol can be put into the tank
A car with a vertical radio antenna 75 cm long drives due east at 30 m/s. Find the induced emf between the ends of the antenna
A parallel-plate, air-gap capacitor has a capacitance of 0.15 ?F. The plates are 0.40 mm apart. What is the area of each plate
Suggest a proper answer with proof for if frequency of incident radiation is doubled, what will be the effect on maximum kinetic energy of photo electrons
A 45 kg trunk is pushed 7.8 m at constant speed up a 30° incline by a constant horizontal force. Calculate the work done by the weight of the trunk.
A toy train rolls around a horizontal 1.3--diameter track. The coefficient of rolling friction is 0.12. What is the magnitude of the train's angular acceleration
A technician wraps wire around a tube of length 40 cm having a diameter of 7.7 cm. If the current in this solenoid increases at the rate of 3 A/s, what is the self-induced emf in the solenoid
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
A nearsighted person wears glasses to correct the problem. How far in cm from the eyes is the person's far point located
A pot containing1.00 liter of water, initially at 20.08C, is placed on a 1000 W electric heating element. How much heat must be supplied to the water to bring it to a boil
Photons of wavelength 334 nm are incident on a metal plate in a photocell and electrons are ejected. What is the maximum wavelength of photons that will eject electrons from this metal
You have 3.0 moles of helium gas initially at a temperature of 350 K, and a pressure of 0.20 x Patm, How much heat flows into the gas
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