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One cylinder in the diesel engine of a truck has an initial volume of 600 cm3. Air is admitted to the cylinder at 30 0C and a pressure of 1.0 atm. The piston rod then does 400 J of work to rapidly compress the air. What are its final temperature and volume?
Sheena can row a boat at 3.01 mi/h in still water. She needs to cross a river that is 1.26 mi wide with a current flowing at 1.43 mi/h. How long does it take her to cross the river
A firefighter mounts the nozzle of his fire hose a distance 40.1 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. By what factor was the nozzle diameter changed
A 0.04-kg baseball traveling in a horizontal direction with a speed of 16 m/s hits a bat and is popped straight up with a speed of 15 m/s. what was the average force of the bat on the ball
A boat crossing a 143.0 m wide river is directed so that it will cross the river as quickly as possible. Calculate the total distance the boat will travel to reach the opposite shore
A 32.8 g piece of aluminium at 72 is dropped into a cavity in an extremely large block of ice at 0. How much ice mice does aluminium piece melt.
Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi; at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in t..
If you bring a negatively charged insulator near two uncharged metallic spheres that are in contact and then separate the spheres, what will be the charge of the right sphere
A jeweller working with a heated 44 g gold ring must lower the ring's temperature to make it safe to handle. If the ring is initially at 94 degrees Celsius, what mass of water at 25 degrees Celsius is necessary to lower the ring's temperature to 35 d..
An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9x106 eV), What is the final kinetic energy of the gold nucleus
Two forces, F1 vector and F2 vector, act at a point. F1 vector has a magnitude of 8.40N and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. What is the magnitude of the resultant force
A ladder of length L = 2.6 m and mass m = 20 kg rests on a floor with coefficient of static friction %u03BCs = 0.54. What is the normal force the floor exerts on the ladder
A blue puck with a mass of 4.30×10?2kg , sliding with a speed of 0.190m/s on a frictionless, horizontal air table, Find the direction of the velocity of the red puck after the collision
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