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A pacific north west home has a solar photovoltaic (PV) systemthat produces 10.45 MWh of usable electricity peryear. Their PV system is tied to the electrical grid, and all theenergy it produces is credited against their energy homeconsumption.Well, they have purchased an electric car to replace theirprevious gasolline car. The electric car will be charged nightlyfrom an outlet in their garage. This is the only place where theywill charge the car. They plan to drive their car about10,000 miles per year. Published data show, on average, anelectric car requires .35 kWh/mile.
A. Calculate the car's annual energyconsumption.
B. The homes average historical electricityconsumption, before the electric car, has been 7 MWh per year. Nowthat they are using the electric car, what percentage of theirtotal annual consumption will be used by the car?
An 8.m, 220 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can an 770 N person climb before the la..
A proton moving in a circular orbit of radius R = 45 cm in a uniform magnetic field of 0.65 T perpendicular to the orbit plane. determine the magnetic force on the proton
Solar cells generate a potential difference when exposed to sunlight. In an experiment, you wish to charge a rechargeable battery by connecting it in series to an array of solar cells. What is the area of the array of solar cells
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. If 18% of the light passes through this combination of filters,
Consider an airplane window (area 0.32 m2). If the pressure inside the plane is atmospheric pressure and the pressure outside is 15% of Patm, what is the force on the window
A student sits on a rotating stool holding two 4.0-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
You are pushing a 142 kg wooden crate in a straight line a distance of 5.1 m across a wooden floor. The crate is speeding up at 0.30 m/s^2. What is the work done by friction on the crate
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
A recantangular block of wood floats in a calm lake. Show, if friction is ignored, determine an equation for the force constant
A rail car that weighs 40 N is accelerated at 6.9 m/s/s for 4.9 seconds. How much work is done on the rail car
what is the force of kinetic friction acting on the skier. avoid the length of her car and her reaction time.
Two ice skaters, Daniel (mass 65.0 kg) and Rebecca (mass 45.0kg), are practicing. Daniel stops to tie his shoelace and,while at rest, find direction of Daniel's velocity after the collision
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