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Two forces parallel to the x axis do 19.0 J of work on a small tray while moving it 17.6 m in the x direction across a gym floor. One of the forces has a value of +3.80 N in the x direction. What is the other force?
Compute the average acceleration of car and lizard and the final velocity of a Ferrari.
A rock is thrown vertically upward from ground level at time t = 0. At t = 1.9 s it passes the top of a tall tower, What is the height of the tower
A 75 , 33 long rod hangs vertically on a frictionless, horizontal axle passing by its center. A 12 ball of clay traveling horizontally at 2.6 hits and sticks to the very bottom tip of the rod.
think about the modes of substances in the gas phase and explain why potential energy is included in the thermal energy of some substances in the gas phase, when a monatomic solid/liquid turns into a gas, what are the PE and KE equal to then
The length of a string is 322 cm. It is held fixed at each end. The string vibrates in seven sections; such as the string has seven antinodes, and the string vibrates at 160 Hz.
Which has a greater packing fraction, a diamond crystal structure or a copper crystal structure, how much empty space would be left in each structure
A charge of +45.9 C is at the origin. When charge Q is placed at 2 m along the positive x axis, What is the value of Q
A 0.390 kg iron horseshoe that is initially at 745 °C is dropped into a bucket containing 24 kg of water at 46 °C. What is the final equilibrium temperature? Overlook any heat transfer to or from the surroundings.
A nonreflective coating (n = 1.40) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 535 nm), find the minimum nonzero thickness that the coating can have.
A 320 piano slides 3.3 down a 24 incline and is kept from accelerating by the man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano.
The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively, What is the final overall magnification of the microscope
A cannon tilted upward at = 33 fires the cannonball with a speed of 99. At that instant, what is the component of the cannonball's velocity parallel to the ground.
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