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The length of a spaceship is 87 meter when it is at rest. If the spaceship travels by you with a speed of 0.72c, determine what length does it appear to you?
A war-wolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet.
A plane flies with a velocity of 345 meter per second making an angle of 48o with the horizontal. Determine the vertical component of velocity for plane
A bicycle wheel of radius 22 cmis mounted at the middle of an axle 44 cm long. What is the angular velocity of precession
Some good estimates about the human body can be made if it isassumed that we are made mostly of water. The mass of a water molecule is 2.99*10-26 kg. If the mass of a personis 51 kg, estimate the number of water molecules in that person.
An ideal gas undergoes the process a - b - c. Pa = pc = 200. kPa, Vb = Vc = 40.0x10-3m3, and Pb = 400.kPa. How much work is done by the system in this process
A diver springs upward with an initial speed of 1.7 m/s from a 3.0-mboard. Find the velocity with which he strikes the water.
A rope having a total mass of 0.4 kilogram and total length 4 meter has 0.6 meter of the rope hanging vertically down off a work bench. Determine how much work must be done to place all the rope on the bench
A 0.400 kg block of wood hangs from the ceiling by a string, and a7.4x10^-2 kg wad of putty is thrown straight upward, striking thebottom of the block with a speed of 5.75 m/s. The wad of putty sticks to the block.
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. determine the current in the primary
An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its plates. how much energy does it now store
Two moles of ideal gas at atmosperic pressure 20 degree celcius is confined to a closed container of volume 44.5 liter. What is the pressure in the container
The total charge Q is placed on a conductingshell. In the cavity of the conductor, you have a charge q. What is the charge on the outer surface of the conducting shell
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