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1) How much heat is required to change 50 g of ice at 0 oC into liquid water at 0 oC? (Answer: 4000 cal) 2) If 350 g of water initially at 25 oC released the amount of heat that you found in Part (1), what would its temperature be afterward? (Answer: 13.58 oC)
3) If you were to combine 50 g of liquid water at 0 oC with 350 g of the water at the temperature you found in Part (2), what would the final temperature of the mixture be?
4) Now, if 50 g of ice at 0 oC is combined with 350 g of water initially at 25 oC, what is the final temperature of the mixture?
5) How much heat is needed to raise the temperature of 350 g of water initially at 25 oC to 100 oC?
6) If the heat absorbed by the water in Part (5) came from the condensation of steam initially at 100 oC, how much steam condensed?
Determine the force exerted by Mars on the sun. What is the acceleratopm of Mars? What is the acceleration of the sun
a charge of 5 c moves upward at 2 ms in a magnetic field of 0.3t that points into the page. what is the magnitude and
there is a pipe that is 120 inches in length and 12 inches in diameter and with a pressure of 10 psi air is pushed
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
A rifle with a weight of 40 N fires a 3.5 g bullet with a speed of 240 m/s. find the recoil speed of the man and rifle
An alpha particle, the nucleus of a helium atom, has a mass of 6.7*10-27 kg and a charge of 3.2*10-19C. It floats at rest above a charged horizontal sheet with uniform charge density on its surface.
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball, How tall is the building that the child is standing on
In Rutherford's famous scattering experiment, α particles (helium nuclei) were fired at 2.0 x 10^7 m/s over a large distance toward a gold nucleus with charge +79e
A daredevil decides to jump a canyon. Its walls are equallyhigh and 15 m apart. What minimum speed must he have in order to clear the canyon
one mole of an ideal gas at 1 atm and 0 c is compressed isothermally from 50l to 20l during this process energy is
The 22.5 g arrow is shot with a speed of 37.0 m/s and passes through the target, which is stopped by the impact. What is the speed of the arrow after passing through the target
A right triangle has a hypotenuse of length 17 cm and a leg of length 15 cm. What is the length of the other leg
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