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Assume you have a car with a 125-hp engine. Find how large a solar panel would you need to replace the engine with solar power? Assume that the solar panels can utilize 20 percent of the maximum solar energy that reaches the Earth's surface (1000W/m2). 1 hp = 746 W.
The lenses of a particular set of binoculars have a coating with index of refraction n=1.38, and the glass itself has n=1.52. what is the minimum thickness of the coating
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.56 diopters, How far is the blackboard from her eyes
it is often useful to define a quality factor or q-factor for an oscillatorq2pi x energy stored energy dissipated
During a thunderstorm the electric field at a certain point in the earth's atmosphere is 1.06 x 105 N/C, directed upward. Obtain the acceleration of a small piece of ice of mass 1.01 x 10-4 gram
A small rigid object carries positive and negative 4.00 nC charges. It is oriented so that the positive charge has coordinates, Find the electric dipole moment of the object
A ball thrown horizontally at 24.72 m/s travels a horizontal distanceof 49.51 m before hitting the ground. From what height was the ball thrown
Your beighbor has a cute Bichon-Frise puppy. assume air is 80% Nitrogen and 20% Oxygen, how many grams of air does the tire contain
A uniform rod of length L and mass M is nailed to a post so that two thirds of its length is below the nail. What is the period of small oscillations of the rod
A playground is on the flat roof of a city school, 4.6 m above the street below (see figure). The vertical wall of the building is h = 6.10 m high, forming a 1.5-m-high railing around the playground. Find the vertical distance by which the ball cle..
steel train rails are laid in 12m long segments placed end to end. the rails are laid on a winter day when their
Suppose that the terminal speed of a particular sky diver is 165 km/h in the spread-eagle position and 305 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other, find the ratio of t..
an athlete in a competition needs to get from point a to another point b directly across from a river. he can swim in
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