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An ice-cube tray contains 0.332 kg of water at 18.5C.
A) How much heat must be removed from the water to cool it to 0 degreesC and freeze it? Express your answer in joules.
B) How much heat must be removed from the water to cool it to 0 and freeze it? Express your answer in calories.
What temperature change would reason a 0.20 % enhance in the volume of a quantity of water that was at first at 20 ^circ {rm C}.
Recent studies have raised concern about `heading' in youth soccer (i.e., hitting the ball with the head). A soccer player `heads' a size 4 ball deflecting it by 59.0°, What is the magnitude of the impulse which the player must impart to the ball
5 moles of an ideal gas, initially at P=105 Pa and V=3m3, expand adiabatically until the volume is doubled, How much work was done in the adiabatic step
A uniform disk of radius 0.459 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
he car is suspended beneath the helicopter by a steel cable. Illustrate what is the lift force exerted on the air by the helicopter's rotor?
A 0.504 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
The balance wheel of a watch oscillates with angular amplitude 0.90? rad and period 0.68 s. Find the maximum angular speed of the wheel
A cannonball (20kg) is shot from a cannon(200kg) with a velocity of 20m/s. what is the backwards velocity of the cannon
A tsunami is generated by an earthquake off the coast of Alaska. It has a wavelength of 677 km. It travels at a distance of 3536 km in a period of 5.49 hr. What is the frequency of the wave in Hz?
question1a photographer in a helicopter ascending vertically at a constant rate of 12.5 ms accidentally drops a camera
A 9.59-g bullet, moving horizontally with an initial speed v0, embeds itself in a 1.45-kg pendulum bob that is initially at rest. Find the initial speed of the bullet.
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
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