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A 990.0 g block of wood rests on a tabletop. A 10.0 g bullet is shot straight up through a hole in the table beneath the block. The bullet lodges in the block, and the block flies 5 m above the tabletop. How fast was the bullet going initially?
A spherical mirror has a focal length of +10cm. Find the location and then describe the miage for an object for an object distance of 25cm. How fast does the image of the object move
An automobile with 0.200 m radius tires travels 70,000 km before wearing them out. How many revolutions do the tires make
A trough is 5 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x10 from x=1 to x=1. The trough is full of water. Find out the amount of work in foot-pounds required to empty the t..
A 86.6-kg sprinter exerts a force of 100 N on the starting block at an angle of 30 with respect to the ground. The horizontal acceleration of the sprinter is
A helium-filled weather balloon has a 0.90 m radius at liftoff where air pressure is 1.0 atm, What is the pressure at the airborne location
The average velocity of water at 20°C in a tube of radius 0.°m is 0.2 m s. determine is the flow laminar or turbulent
A cube with the side length 1.53 meters of solid styrofoam is completely submerged in fresh water such that the top of the styrofoam block is parallel to the water surface and is 2.55 meters beneath the surface
In a TV set, an electron beam moves with horizontal velocity of 3.1×107 m/s across the cathode ray tube and strikes the screen, 50 cm away. How far does the electron beam fall while traversing this distance
A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 1.7 , what is the temperature of the filament when the bulb..
Two point charges q = 74.0 nC and q = -74.0 nC are in vacuum located on the x axis at -30.0 cm and 30.0 cm, calculate the total electric flux through the y-z plane
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
How much work did movers do (horizontally) pushing a 150-{rm kg} crate 10.6 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50.
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