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Suppose a car battery provides 14 Volts when not in use. When the starter cranks, it draws 100 Amps and the voltage across the terminals of the battery drops to 12 volts. Find the Thevenins equivalent circuit for this battery.
A Dodge Caravan has a speed of 50 mph and an acceleration of 2 mph second. A Ford Taurus has a speed of 55 mph and an acceleration of 1 (mph) per second. Which car has the higher speed after 10 seconds have elapsed?
High-speed photos of a 220 microg flea jumping vertically indicate that the jump lasts 1.2 ms, What is the flea's change in momentum during its jump
An open-pit coal mine consumes 71hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometres, is separate in this time.
Geologists measure conductive heat flow out of the earth by drilling holes (a few hundred meters deep) and measuring the temperature as a function of depth, what rate is the earth losing heat via conduction?
Suppose a tank contains 624 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa. What is the increase in the internal energy of the neon
A 2.50g bullet, travelling at a speed of 395m/s, strikes the wooden block of a ballistic pendulum. The block has the mass of 265g. How high does the combination rise above its initial position.
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 445 Hz when the train is approaching him and 418 Hz when the train is receding from him. Using these frequencies, h..
As a bat flies toward a wall at a speed of5.70m/s , What frequency does the bat hear in the reflected wave
A motorist travelling at 82 km/hr is being chased by a police car at 131 km/hr. If the police car starts from 3.5 km back, how long does it take to catch the motorist? Leave time in hours.
A landing airplane makes contact with the runway with a speed of 78.0 m/s and moves toward the south. After 18.5 seconds, the airplane comes to rest. What is the average acceleration of the airplane during the landing?
A small glass bead has been charged to + 30{rm nC} . a)What is the magnitude of the acceleration of a proton that is 3.0{rm cm} from the center of the bead? b)What is the magnitude of the acceleration of an electron that is 3.0{rm cm} from the cen..
Suppose that a particle accelerator is used to move two beams of particles in opposite directions, what is the magnitude of the average current in this region
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