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a) Compute the resistance of an automobile jumper cable. (Suppose that the length of the jumper cables is 2.5 m. Also suppose the wires are made of copper and have a cross-sectional area of 10 mm2.)
b) A current is required to start a typical car. What is the potential drop that occurs across the jumper cable? (Take the starting current to be 93 A.)
c) How much power is dissipated in the jumper cable when it carries that current?
In an aortic aneurysm, a bulge forms where the walls of the aortaare weakened. If blood flowing through the aorta (radius 1.0 cm)enters an aneurysm with a radius of 3.0 cm, how much on average isthe blood pressure higher inside the aneurysm than the ..
A 4.10g lead bullet traveling at300m/s is stopped by a large tree. what is the increase in temperature of the bullet
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0g steel wire. What is the mass of the sculpture
A sled is pulled with a horizontal force of 20 N along a level trail, and the acceleration is found to be 0.35 m/s2. An extra mass m = 4.2 kg is placed on the sled. If the same force is just barely able to keep the sled moving, what is the coeffic..
A sphere of aluminum 11.3 cm in diameter is suspended in oil (density = 1 grams/cm3). Find the tension in the supporting string in Newtons
A 735 N man stands in the middle of a frozen pond of radius 5.0 m. He isunable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, hethrows his 1.2 kg physics text book horizontally towar..
The nucleus of a 125^Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q=+54e, What is the proton's acceleration
A ball is tossed from an upper-story window of a building. Theball is given an initial velocity of 8 m/2 at an angle of 20degreesbelow the horzontal. It strikes the ground 3.00s later.
If instead you made a mistake and compressed the spring 15 centimeter from its equilibrium position, calculate how fast would the block be traveling when it passed the 50 cm point up the incline
A velocity selector 1ms a magnetic field of magnitude 0.3 T perpendicular to an electric field of magnitude 0.32 MV/m. The mass of an electron is 9.11 times 10-31 kg. How much energy must electrons have order to pass through undeflected? Answer in un..
A CD rotating at 1200 rpm starts slowing down at a constant rate such that, after the first two seconds, it has made 10 rotations. Find the time needed for the CD to come to rest
The outside mirror on the passenger side of a car is convex and has a focal length of -5.7 m. compute the magnification of the mirror
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