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If 100 grams of water (specific heat of 1.00 cal/gm deg) at 5degrees Celsius is added to 500 grams of a substance with a precise heat of .25 cal/gm deg at 20 degrees Celsius in an insulated container...what is the final temperature of the mixture?
Suppose that there is no heat gained or lost from the container.
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 , and all of the copper is used. Illustrate what will be the length of the wire?
the human eye can readily detect wavelengths from about 400 to 700 . if white light illuminates a diffraction grating
A particle of mass m1 = 3.57kg is traveling in the x-direction at a speed of v1 = 23.6m/s and collides with another particle of mass m2 = 2.85kg that is initially at rest. find the magnitude of the final velocity of the second particle
A hoodlum throws a stone vertically downward with an initial speed of 12.3 m/s from the roof of a building, 24.0 m above the ground. How long does it take the stone to reach the ground
A water bed has dimensions of 1.83 m x 2.13 m x 0.229 m. The floorof the bedroom will tolerate an additional weight of no more than6660 N. Find the weight of the water in the bed to determinewhether it should be purchased.
One end of a string, 15 m long, is moved up and down with a simpleharmonic motion at a frequency of 30 Hz. What is the wavelength ofthe waves on the string
two horizontal forces f1 and f2 are acting on a box. f2 can point either to the right or to the left. the box moves
How does the decrease in gravitational potential energy of a falling ball compare to its increase in kinetic energy.
a force of 8n acts on an object on a frictionless horoizontal surface. the force acts in a vertical plane at an angle
A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 3.7 × 104 kg, and the force causes its speed to change from 7600 to 5500 m/s. What is the work done by the force
Diffraction grating produces its third-order bright band at an angle of 79.4 degrees for light of wavelength 731nm. Find the angular location of the first-order bright band
1000 gallons per minute of fluid flows through a 3 inch diameter pipe. what is the average velocity of the water
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