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Your car battery is wearing out in the cold, and delivers 11.4 V with an internal resistance of 0.01 ?. It's connected to a 2 ? load (your starter motor), and can't quite turn over the congealed mass of motor oil in your engine. Your friend pulls up with a healthy 12.6 V battery (also having internal resistance 0.01 ?) and connects jumper cables between the batteries.
Draw a diagram of this circuit.
Find the current in each part of this circuit.
Find the power delivered by the good battery, and discuss where this power goes, assuming that the emf's and resistances of each battery remain the same throughout the process.
What is the net electric flux through the spherical surface
A bob of mass m = 0.300kg is suspended from a fixed point with a massless string of length L = 21.0cm, What tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 24.0
Find out the velocity with which he strikes the water. (Hint: When the diver reaches the water, his displacement is y = -3 m (measured from the board), assuming that the downward direction is chosen as the negative direction.)
A very large number (N+1) polaroids are arranged in a sandwich.
Two electrons are fixed 2.1 cm apart. Another electron is shot from infinity and comes to rest midway between the two. What was its initial speed
A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure (101.325 kPa) and the density of the fluid in the manometer is 12.0 g/cm3. When the vessel is under 11.5 psi of vacuu..
The trustee made distributions of $8,400 to Linda and $16,000 to Lucy. The trust and both beneficiaries are cash basis, calendar year taxpayers. Calculate the trust's accounting income.
In one design, a large spring with spring constant 2×10^4 N/m was placed behind the cannon. The other end of the spring braced against a post that was firmly anchored to ship's frame.
here is a point on the x-axis between the two charges where the electric field is zero. Find out the location of the point where the electric field is zero.
The coefficient of kinetic friction between her skis and the snow.
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
A 2.00 syringe has an inner diameter of 5.00, a needle inner diameter of 0.270, and a plunger pad diameter (where you place your finger) of 1.20. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. Suppose the ..
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