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Q. How much heat (in ) is required to warm 13.0 g of ice, initially at -10.0 degrees C, to steam at 111.0 degrees C? The heat capacity of ice is 2.09 and that of steam is 2.01 .
Q. A rifle is aimed horizontally at a target 45.0 m away. The bullet hits the target 2.70 cm below the aim point, what is the bullets time in the air? what is its velocity?
Refrigerant-134a enters a compressor at 180 kPa as a saturated vapour with a flow rate of 0.35 m3/min and leaves at 700 kPa. The power supplied to the refrigerant during compression process is 2.35 kW. What is the temperature R-134a at the exit of th..
A small circular hole 7.00 in diameter is cut in the side of a large water tank, 25.0 below the water level in the tank. The top of the tank is open to the air.
A planet's moon travels in an approximately circular orbit of radius 6.6 x10^7 m with a time of 7 h 9 min. Calculate the mass of the planet from this information.
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
Two cicadas, Chirpy and Milada, jump from the top of a vertical cliff. Chirpy just drops and reaches the ground in 3.10 , while Milada jumps horizontally with an initial speed of 98.
The locomotive is moving at 25 km/h. The engineer of the high speed train immediately applies the brakes. What must be the magnitude of the resulting constant deceleration if a collision is to be just avoided.
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
A stream of water strikes a stationary turbine blade horizontally. The incident stream has a velocity of +16m/s whilst the exit has a velocity of -16m/s. mass of water per second that strikes the blade is 30kg/s.find the magnitude of average force ex..
How many protons hit the target. How much energy is delivered to the target each second if the protons each have a kinetic energy of 30 MeV and lose all of their energy in the target.
A 10000 kg boxcar traveling at 20 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 11 m/s. What is the mass of second car.
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