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Long wires, that carry electricity from the power plant to the customer get very hot due to the amount of current as well as the amount of conductive material through which the electrons have to travel. Given Pin> Pout and that P = I V, explain power companies step up the generated voltage (~ 13,000 V) to multiple times that value (~ 360,000 V).
An asteroid has acquired a net negative charge of 128C from being bombarded by the solar wind over the years, How many more electrons does it have than protons
Given the strategic decisions in the case, Classify three leadership actions that the industry would need to be consider to implement the decisions. Explain why these are critical to implementing the strategic decision.
Vector A~ has a magnitude of 9 and points in the positive x-direction. Vector B~ has a magnitude of 19 and makes an angle of 38? with the positive x-axis
A spherical cavity of radius 4.00 is at the center of a metalsphere of radius 18.5 . A point charge 6.00 rests at the very center of the cavity, whereas the metal conductor carries no netcharg Determine the electric field at a point 2.00 from the ..
A cardboard tube of radius R and length L has a uniform charge density on its surface. Find the potential at a point on the axis of the tube at a distance d from the center.
A patient is undergoing open-heart surgery. A sustained current as small as 25μA can be fatal. find the minimum voltage that poses a danger to the patient
In a physics lab experiment, a spring clamped to the table shoots a22 {\rm g} ball horizontally. When the spring is compressed 22 {\rm cm}, the ball travelshorizontally 5.2 {\rm m} and lands on the floor1.3 {\rm m} below the point at which it left..
If the mass of a wheel is increased by a factor of 6, by what factor is the moment of inertia increased
the body contains many small currents caused by the motion of ions in the organs and cells. measurements of the
What is the speed v of a wave traveling down such a wire if the wire is stretched to its breaking point? Express the speed of the wave numerically, in meters per second, to the nearest integer.
A 1.00 m diameter wagon wheel consists of a thin rim having a mass of 5.00 kg and six spokes each having a mass of 0.80 kg. Determine the moment of inertia of the wagon wheel for rotation about its axis
A stone is thrown from the top of a building by an initial velocity of 21.7 m/s straight upward, at an initial height of 54.9 m above the ground. The stone just misses the edge of the roof on its way down, as shown in the figure. Decide the time need..
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