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The icebox on a sailboat measures 60 cm X 60 cm X 60 cm. The contents of this icebox are to be kept at a temperature of 0°C for 4 days by the gradual melting of a block of ice of 20 kg, while the temperature of the outside of the box is 30°C. What minimum thickness of styrofoam insulation is required for the walls of the icebox?
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. Determine the intensity level of the infrasound
What is the speed of the block of clay right after the collision. What impulse does the clay exert on the block.
A pair of closely spaced square conducting plates measure 8.0cm on a side. What is the charge on the plates
An old wooden tool is found to contain only 24% of 14 6C that a sample of fresh wood would. How old is the tool
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 5.90 m/s up the incline. Determine the initial speed of the second sled
A 300-kg load is hung on a wire of length 5.00 m, cross-sectional area 0.200 × 10-4 m2, and Young's modulus 8.00 × 1010 N/m2. What is increase in length of the wire
An electron of energy 400 eV moves at right angles to a uniform magnetic field along an arc of radius 2.0cm. What is the energy of the second electron
What is the lamp's resistance? What fraction of the power dissipated is dissipated in batteries.
the mass of a star is 1.71middot1031 kg and it performs one rotation in 34.1 days. find its new period in days if the
A steel aircraft carrier is 379 m long when moving through the icy North Atlantic at a temperature of 1.8 °C. By how much does the carrier lengthen while it is travelling in the warm Mediterranean Sea at a temperature of 24°C.
What is the angular frequency in rev/s of combination.
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 4.79 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) What is the net charge of all these electrons?
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