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A- Explain what happenes with the heat and temperature for a subzero ice cube changing into steam.
B- Explain specific heat is different for constant pressure and constant volume and monatomic, diatomic and plyatomic gases.
When is there no work on an object. For example, a weightlifter picks up a weight, or a kid wearing skates pushes of a wall and moves in the opposite direction. Why is the force in each problem not doing work
Even as exploring a sunken ocean liner, principal researcher found the absolute pressure on the robot observation submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025kg/m^3.
A guitar string is 0.7m long and is tuned to play an E above middle C (330Hz).
While rolling marbles on a horizontal window sill, a youngster accidentally shoots one at 3.0 m/s out the open window. He sees it land in a flower pot on a neighbor's fire escape 3.0 s later. How far beneath the sill is the pot?
X rays diffract from a crystal in which the spacing between atomic planes is 0.168 nm. The second-order diffraction occurs at 46.0. What is the angle of first-order diffraction
Freud believed that certain troubling symptoms might be traced to painful unconscious memories. This led him to suspect that these symptoms resulted from.
An equilateral triangle 10.0 m on a side has a 1.00 kg-mass at one corner, a 2.00- kg mass at another corner, and a 3.00- kg mass at the third corner. Find the magnitude of the net force acting on the 1.00-kg mass
A string that is fixed at both ends has a length of 2.49 m. When the string vibrates at a frequency of 80.8 Hz, What is the fundamental frequency of the string
A speaker at the front of a room and an identical speaker atthe rear of the room are being driven at 421 Hz by the same sound source. How many beats does the student hear per second
A person pushes a 16.0-kg shopping cart at a constant velocity of a distance of 26.0 m. She pushes in a direction 20.0degrees below the horizontal. A 54.0 N frictional force opposes the motion of the cart.
determine the coefficient of static friction between a motorcycle tires and the pavement as he leans to the side in
A 0.060 kg tennis ball, initially moving at a speed of 12 m/s,is truck by a racket causing it to rebound in the oppositedirection at a speed of 18 m/s. What is the change in momentum of the ball?
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