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A scuba diver has an air tank with a volume of 0.0200m3 . The air in the tank is initially at a pressure of 1.00 x 107Pa. Suppose that the diver breathes 0.300L/s of air. Note diver is in fresh water.
1. Discover how long the tank will last a depth of 1.00 m
2. Discover how long the tank will last at a depth of 10.0m
A student drops two metallic objects into a 120-g steel container holding 150 g of water at 25°C. One object is a 230-g cube of copper that is initially at 85°C, What is the mass of the aluminum chunk
A comet moves about the Sun in an elliptical orbit, with its closest approach to the Sun being about 0.680 AU and its greatest distance from the sun being 38.5 AU (1 AU = the Earth–Sun distance).
The rod is initially at rest and oriented horizontally and then released so that it swings to the bottom. Illustrate what are all the forces acting on the rod?
two protons are placed at a 5.05 cm above and below the x axis at x 0 as shown in the figure. an electron is placed
Two parallel wires are each carrying 10 A and are separated by 4.0 m. If the currents are in opposite directions, what is the magnitude of the magnetic field halfway between them?
four identical 2kg point masses are fixed at the corners of a massless rectangle of length 20cm and width 15cm. determine the angular velocity of the masses
A 9.0 cm-diameter disk emits light uniformly from its surface. 20 cm from this disk, along its axis, is an 7.0 cm-diameter opaque black disk; the faces of the two disks are parallel. 20 cm beyond the black disk is a white viewing screen. The light..
Two runners of mass 70 kg and 60 kg,respectively, have a total linear momentum of 350 kg*m/s. The heavier runner is running at 2.0m/s. Examine the possible velocitis of the lighter runner.
A positively charged particle of mass 8.00 10-8 kg is traveling due east with a speed of 30 m/s and enters a 0.26-T uniform magnetic field. obtain the magnitude of the magnetic force acting on the particle
a golf ball is hit off a tee at the edge of a cliff. its x and y coordinates as functions of time are given by the
while you take a bath, how many kilograms of hot water (50°C) have to you mix with cold water (11 °C) so that the temperature of the bath is 36 °C? The total mass of water (hot plus cold) is 194 kg. Ignore any heat flow between the water and its e..
the electric field just above the surface of the charged drum of a photocopying machine has a magnitude e of 2.3 times
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