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In determining the specific heat of a new metal alloy, 150g ofthe substance is heated to 400C and then placed in a 200g aluminium calorimeter containing 400g of water at 10C. If the final temperature of the mixture is 30.5C, what is the specific heat of the alloy?
q1. when blue light of wavelength 450 nm falls on a single slit the first dark bands on either side of center are
A tank of water 3.00m deep sits on a table 1.00 m tall. A hole is located 2.0m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground.
The output voltage of a 63 W transformer is 15 V, and the input current is 17A. By what factor is the voltage multiplied? Assume 100% efficiency. . .
A child pulls on a wagon handle at an angle 37° above the horizontal with a force of 45 N. what is the mass of the wagon
3 an observer in spaceship B obverses another spaceship A travelling with a velocity of 0.40 c relative to him. Both are moving in the +x-direction, how much time it takes the missile to reach you
Calculate the rest energy of an electron in joules and Calculate the rest energy of an electron in MeV (1MeV=1.60×10?13J)
The figure below shows a hollow cylinder that has a length equal to 1.80 m, a mass M equal to 0.88 kg, and radius equal to 0.20 m. The cylinder is free to rotate about a vertical axis that passes through its center and is perpendicular to the cylinde..
Two waves have the exact same frequency, wavelength, and amplitude. They are both travelling in the +x direction, What is the phase difference between the two waves.
The level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, Determine the depth d of liquid in the tank?
You leave your 100 W portable color TV on for 4 hours each day and you do not pay attention to the cost of electricity. what would be your monthly (30 day) bill
q1. a customer sits in an amusement park ride in which the compartment is to be pulled downward in the negative
Two balls of identical mass of 0.151 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.510 m, what is the charge on each ball
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