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A 5.0-rn-diameter garden pond is 0.300m deep. Solar energy is incident on the pond at an average rate of 400 W/m2. If the water absorbs all the solar energy and does not exchange energy with its surroundings, how many hours will it take to warm from I 3.0C to I 8.0C?
In a collision between a car of mass 1000 kg and a pickup truck of mass 1600 kg, the truck is initially at rest and the car is moving with a velocity 21 m/s. Immediately after the collision, the car is moving with a velocity 2.0 m/s in the same di..
A 6.7 centimeter diameter horizontal pipe gradually narrows to 4.1 centimeter. Evaluate what is the volume rate of flow
A boat has a mass of 6800 kg. Its engines generate a drive force of 4000 N, find the magnitude and direction of the boat's acceleration
A pendulum sweeps out an angle of 12.5° during its motion. How far does the pendulum bob (the ball at the end of the rope) travel
A child slides down a slide with a 21^\circ incline, and at the bottom her speed is preciselyhalf what it would have been if the slide had beenfrictionless. Calculate the coefficient of kinetic friction between the slide and the child.
As F is enhancement d, the block would either begin to slide, or begin to tip over. What must be the coefficient of static friction ms so that the block begins to slide rather than tip.
A small steel sphere of mass 0.40 kg is attached by a 0.50 m long cord to a swivel pin set into the surface of a friction-less table top. compute the tension in the cord
You hit a 0.2 kg golf ball up at 40o from the horizontal. It travels for 4.86 s and stops on an elevated green 10 m above its initial height traveling down at an angle of 35.4o below the horizontal
Consider a transcranial magnetic stimulation (TMS) device containing a coil with several turns of wire, each of radius 3.40 cm. What electric field is induced on the circumference of this circular area
A stone is dropped into a river from a bridge at a height h above the water. Another stone is thrown vertically down at a time t after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second sto..
Your airplane is caught in a brief, violent downdraft. To your amazement, the pretzels on your seatback tray rise vertically, What's the downward acceleration of the plane
Two children who are bored while waiting for their flight at the airport decide to race from one end of the 20 -long moving sidewalk to the other and back. Phillippe runs on the sidewalk at 2.0 (relative to the sidewalk). Renee runs on the floor at 2..
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