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A cylindrical tank 10 ft in diameter, with axis vertical, has an inflow line of 0.2 ft inside diameter and an outflow line of 0.4 ft inside diameter. Water is flowing in the inflow line at a velocity of 4 ft/s and in the outflow line at a velocity of 2 ft/s. Is the level in the tank rising or decreasing? With what speed?
q. a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a
A car is traveling at a speed of 38.0 m/s on an interstate highway where the speed limit is 75.0 mi/hr. Is the driver exceeding the speed limit
For a temperature increase of ?T1, a certain amount of an ideal gas requires 30 J when heated at constant volume, How much work is done by the gas in the second situation
Explain the changes in acceleration, velocity, and net acceleration Of a man jumping off a plane in a parachute. Describe the changes with valid scientific principles.
A rubber ball of mass 149 g is thrown directly at a wall with a speed of 4.7 m/s. what is the magnitude of the impulse imparted by the wall on the ball
A jet airplane is in level flight. The mass of the airplane is m = 8830 kg. find the magnitude of the lift force acting on the plane
Runner A is initially 8.6 km west of a flagpole and is running with a constant velocity of 5.2 km/h due east. What will be the distance of the two runners from the flagpole
You're carrying a 4 m long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold other end of the pole 35 from its tip. How much force should you exert to keep the pole motionle..
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, Determine the minimum speed the roadrunner must have to reach the cliff before the coyote
An 77 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 15 m/s. Illustrate how fast will he be moving backward just after releasing the ball?
A 18-cm-long nichrome wire is connected across the terminals of a 1.5V battery. what is the wire's diameter
A certain nuclear reactor is capable of producing 1.00 x 109 W of power. During its operation, mass is converted to energy. How much mass is converted in one hour
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