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A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, where a and b are constants. At the left, the resistivity is 2.25*10^-8 ohms*m, while at the right end its 8.5*10^-8 ohms*m
a) What is the resistance of the rod?b) what is the electric field at its midpoint if it carries a 1.75-A current?c) If we cut the rod into two 75-cm halves, what is the resistance of each half?
In the Superconducting Super Collider that was planned to have beenbuilt in Texas this past decade, protons would be bent by amagnetic field and would move in a circle of radius 13.10 km.
A ball is dropped from rest from the top of a 6.35-m-tall building, falls straight downward, collides in-elastically with the ground, How many bounces can the ball make and still reach a windowsill that is 2.26 m above the ground
two long parallel wires are separated by a distance of 2.7 cm. the force per unit length that each wire exerts on the
A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round with a mass of 230kg is spinning at 17rpm, What is the merry-go-round's angular velocity, in rpm, after John jumps on
A toy of mass 0.155 kg is undergoing SHM on the end of a horizontal spring with forces constant 305 N/m. When object is a distance 1.20×10-2 m from its equilibrium position, it is observed to have the speed of 0.255 m/s.
A street lamp weighs 180 N. It is supported by two wires that form an angle of 140° with each other. What is the tension in each wire supporting the street lamp
Which is cheaper for the company: to buy or lease real estate? Show your computations. Illustrate what non-quantitative factors should the management consider when making the decision?
guess the force between a proton and an electron at the Bohr radius of 0.5Å (1 Å=10-10 m). The magnitude of the charge of an electron, as well as a proton, is 1.6·10-19 C.
determine the properties required amp show your work.substance given
A 20.0- rock is sliding on a rough, horizontal surface at 8.00 and eventually stops due to friction. What is the total work they do on the supertanker
Catapult fires an 800-kg rock with an initial velocity of 100 m/sat a 40° angle from ground. What is the magnitude of the horizontal impulse
A 10.0 g object moving to the right at 15.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 28.0 cm/s. Find the velocity of each object after the collision
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