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When a car's starter is in use, it draws a large current. The car's lights draw much less current. As a certain car is starting, the current through the battery is 60.0 A and the potential difference across the battery terminals is 9.00 V. When only car's lights are used, the current through the battery is 2.00 A and the terminal potential difference is 11.9 V.
a) Find the battery's emf?
b) What is its internal resistance?
A student walks 24 m from her math class and then turns 90° and walks 10 m to her locker, that is directly north of her class. What is her total displacement.
find the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
General relativity says that the total orbital energy of the binary system consisting of two neutron stars will decrease over time through the emission of gravitational waves. If this happens slowly sufficient that the orbit stays circular, response ..
A meat baster consists of a squeeze bulb attached to a plastic tube. While the bulb is squeezed and free, with the open end of the tube under the surface of the basting sauce.
A bullet of mass 0.0025 kg moving at 581 m/s impacts a large fixed block of wood and travels 5.40 cm before coming to rest.
A machinist starts with three identical square plates but cuts one corner from one of them, two corners from the second, and three corners from the third. Rank the 3 plates according to the x coordinate of their center of mass, from smallest to large..
A tank of water 3.00m deep sits on a table 1.00 m tall. A hole is located 2.0m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground.
A portable 3.5 kw wate heater is immersed for 3 minutes in a plastic filled with 20 kg of water at 20C. what will be the final temperature of the mixture given specific heat of water at 4186 j/gkC.
Two traveling sinusoidal waves are described by the wave functions, What is the amplitude of the resultant wave, What is the frequency of the resultant wave
Find the change in internal energy using first law of thermodynamics.
A highway curve has a radius of 125 m. At what angle should the road be banked so that a car traveling at 27.4 m/s has no tendency to skid sideways on the road.Find an acceleration of box and ramp.
A car travels along a straight east-west road. A coordinate system is established on the road, how far from Mulberry Road did it start
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