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A river 24.0 m wide and 5.0 m deep drains a 3000.0 km2 land area in which the average precipitation is 48 cm/year. One-eighth of this rainfall returns to the atmosphere by evaporation, but the remainder ultimately drains into the river. What is the average speed of the river?
A ray of light, traveling in air, strikes the surface of mineral oil at an angle of 23.4? with the normal to the surface. what is the angle of refraction
A spaceship moving away from Earth at 0.67 c fires a particle beam toward Earth, with speed 0.74 c relative to the ship. find At what speed does Earth receive the particles
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 sealed bottle at 1 atm of pressure holds 1 mole of neon and 1 mole of argon gas at a temperature of 295 K. Find the volume of the bottle
A transformer with a turns ratio (secondary/primary) of 1:11 is used to step down the voltage, determine the voltage supplied to the recharger
On your wedding day your lover gives you a gold ring of mass 3.98 g. 59 years later its mass is 3.73 g. On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 177 u.
Two bumper cars moving on a frictionless surface collide elastically. The first bumper car is moving to the right with a speed of 21.5 m/s and rear-ends the second bumper car, which is also moving to the right with a speed of 5.00 m/s. What is the sp..
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 68 ° with the normal to the wall. What is the beam's pressure on the wall
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 motorist drives along a stright road at a constant speed of 15.0 m/s. Just as she passes a parked motorcycle police officer starts to accelerate at 2.00 m/s2 to overtake her. Assuming the officer maintains this acceleration, the time it takes (in s..
A 52g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 K and has a latent heat of vaporization of 200 kJ/kg
A 300 g object attached to the end of a spring oscillates with an amplitude of 7 cm and a frequency of 1.80 Hz. Find its maximum speed and maximum acceleration
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