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Oil having a density of 931kg/m3 floats on water. A rectangular block of wood4.50 cm high and with a density of 960kg/m3 floats partly in the oil and partly in the water.The oil completely covers the block. How far below the interface between the two liquids is the bottom of the block?
An arrow is shot straight up from a pit 12 m below ground at 38 m/s. Find its max height above ground
A tank contains 11.6 g of chlorine gas (Cl2) at a temperature of 81 °C and an absolute pressure of 5.02 105 Pa. The mass per mole of Cl2 is 70.9 g/mol. How many grams of chlorine gas have leaked out of the tank
a sound has an intensity of 38.0 wm2. a second sound has an intensity level which is 2.5 db greater than the intensiry
a rock is tossed straight up with a speed of 27 ms. when it returns it falls into a hole 15 m deep.part a what is the
the highest recorded waterfall in the world is found at angel falls in venezuela. its longest single waterfall has a
your sister wants to participate in the yearly science fair at her high school and asks you to suggest some exciting
Estimate the rms electric field in the sunlight that hits Saturn, knowing that the Earth receives about 1350 W/m2
In a crash test, a test car of mass 1711 kg is moving at a speed of 37.2 m/s when it crashes into a wall. how much average power (in W) is expended in this process
Two identical spools are held at the same heights above the floor. The thread from the spool A is tied to an overhead support while spool B is not connected to the support. which spool will hit the floor first
A body of mass 2.60 kg moves along the x-axis, and its motion is described by the equation x = 7 sin (24 t + 2), where x is in m and t is in s. Find the resultant force on the body at t = 0.100 s
A hand pump is being used to inflate a bicycle tire that has a gauge pressure of 36.9 psi. how far down must the piston be pushed before air will flow into the tire
The electromagnetic wave used in a microwave oven have a wavelength of about 12.222 cm. What is the frequency of the radiation
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