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Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle. Find the magnitude of the electric field everywhere.
A 0.015 kg bullet traveling horizontally at 400.2 m/s strikes a 4.1 kg block of wood sitting at the edge of a table. The bullet is lodged into the wood. If the table height is 1.2 m, how far from the table does the block hit the floor.
A spring with 58 hangs vertically next to a ruler. The end of the spring is next to the 11- mark on the ruler. If a 2.5- mass is now attached to the end of the spring, illustrate where will the end of the spring line up with the ruler marks?
A 1110 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from far end of beam.
A polar bear of mass 436 kg stands on an ice floe 58.10 cm thick. What is the minimum area of floe that will just support the bear in saltwater of density of 1030 kg/m3? The specific gravity of ice is 0.88.
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. (b) Imagine adding electrons to the pin until the negative charge h..
At one point in a pipeline, water's speed is 3.30 m/s and the gauge pressure is 4.00×10^4 Pa. Find out the gauge pressure at a second point in the line 13.0 m lower than the first if the pipe diameter at the second point is twice that at the first.
How much is the spring compacted
How would you describe why we have different atmospheric pressure on different level (height) of earth's atmosphere in molecular level (molecular behaviour and what causes such behaviour).
A particle moves along the x axis. Its position is given by the equation 2.00 + 3.00t - 4.00t^2 with x in meters and t in seconds. Find out (1) its position at the instant it changes direction and (2) its velocity when it returns to the position i..
The bullet becomes embedded in the block. If bullet-block system compresses the spring by a highest of 88.0 cm, what was the speed of the bullet at impact with the block.
What is the relationship between the light emitted by an atom and the energies of the electrons in the atom?
A swimming pool has dimensions 28m 11m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water.
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