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The specific heat of lead is .030 cal/g x degrees C. 300 grams of lead shot at 100 celcius is mixed with 100 grams of water at 70 degrees celcius in an insulated container. the final temperature of the mixture is what? Detailed solution gets lifesaver rating.
a contestant in a winter games event pushes a 31 kg block of ice across a frozen lake. the coefficient of static friction is 0.1, Calculate minimum Force he must exert to get moving back
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 33.0 m above sea level, directed at an angle above the horizontal with an unknown speed v0. The projectile remains in..
A planet of mass 7*10^24 is at location m A star of mass 8*10^30 is at location m. What is the force exerted on the planet by the star ?
Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
Ethyl alcohol flows through a horizontal tube of diameter 3.00 cm that is joined to a second horizontal tube of diameter 1.62 cm. What is the speed of flow in the first tube
air traffic controllers usually describe the position of an aircraft relative to the airport by altitude, What are the x, y, and z components (in meters) of hte position vector
When the front of the train passes the worker. A 1500 kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 18.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision.
Two comets, each of mass 6500 kg and traveling 95 m/s in opposite directions, collide head-on and come to rest. How much energy is produced in this collision
On a frictionless, horizontal air table, puck A (with mass 0.150 kg ) is moving toward puck B (with mass 0.400 kg ), What was the speed of puck A before the collision
A tank holds a layer of oil, of thickness To = 1.43 m, that floats on a layer of syrup of thickness Ts = 0.640 m, What is the index of refraction of the oil
A charge of 2.19 µC is held fixed at the origin. A second charge of 2.19 µC is released from rest at the position (1.15 m, 0.470 m) . If the mass of the second charge is 2.10 g, what is its speed when it moves infinitely far from the origin?
A young girl with mass 35.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 86.0kg?m/s, How much work has been done on the girl by the force in the time interval from t= 0s to the ..
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