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Given three resistors: R1= 2 ohms, R2=3 ohms, and R3= 4 ohms. How many combinations of equivalent resistance can you have. Sketch the configurations and calculate the equivalent resistance.
One such device generates an upward magnetic field within the brain that rises from zero to 1.50 T in 131 ms. Determine the induced emf around a horizontal circle of tissue of radius 2.00 mm.
Two solenoidal coils, A and B, are wound using equal lengths of the same kind of wire. The length of the axis of each coil is large compared with its diameter. The axial length of coil A is twice as
The magnetic field inside a superconducting solenoid is5.50T. The solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. (a) Determine the magnetic energy density in the field.
A dock worker applies a constant horizontal force of 77.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 10.0 in the first
Estimate the power required to operate the luggage conveyor, neglecting the mass of the belt and any friction.
A pendulum consists of a mass hanging from a string of length 1.0 mattached to the ceiling. Suppose that this pendulum isinitially held at an angle of 30o with the vertical (seeFigure) and then rele
A lamp in a child's Halloween costume flashes based on an RC discharge of a capacitor through its resistance. The effective duration of the flash is 0.240 s, during which it produces an average 0.4
A passenger on Boat 2 walks due east across the deck at a speed of 1.70 m/s relative to Boat 2. What is the speed of the passenger relative to the shore?
What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, will result in the combined wave having an amplitude 1.50 times that of
The mass of the first block is 1236 g, and its velocity is +0.608 m/s after the bullet passes through it. The mass of the second block is 1521 g. (a) What is the velocity of the second block after t
When the blocks are released, the spring expands and pushes the two blocks apart. What is the speed (in m/s) of the 2 kg block? You may assume that the surface is horizontal and frictionless.
The first balloon launched by the Jackson team hits Walton dorm 2.00 s after launch, striking it halfway between the ground and the roof. Ignore air resistance. (a) Find the direction of the balloo
Two polarizers are oriented at 46 degrees to each other and a polarized light is incident on them. If only 12 percent of the light gets through both of them, what is the angle between the initial po
A golfer hits a shot to a green that is elevated 2.80 m above the point where the ball is struck. The ball leaves the club at a speed of 19.4 m/s at an angle of 40.0? above the horizontal. It rises
What is the best way to study and prepare for a physics exam? And the questions are from the book and I freak myself out and don't know how to prepare and see how the questions are similar to each
Consider a series LCR circuit, consisting of a 20-micro Farad capacitance, a 10-milli-Henry inductance, and a 23-Ohm resistor. This circuit is fed by a sinusoidal alternating emf with an amplitude
Two identical strings are fixed on both ends. The first string is vibrating in its fundamental mode and it is observed that the other string begins to vibrate at its third harmonic, driven by the fi
(a) If the gravitational potential energy U of the rock-Earth system is set to zero at the bottom of the hill, what is the value of U just before the slide? (b) How much energy is transferred to the
A horizontal true centrifugal casting operation will be used to make copper tubing. The lengths will be 1.5 m with outside diameter = 15.0 cm, and inside diameter = 12.5 cm. If the rotational speed
How much work does the elevator do on you alone (without belongings) on the downward trip, which is also made at a constant velocity?
A 3-kg ball moving at 11 m/s collides elastically and head-on with a second 20-kg ball moving in the opposite direction with -11 m/s. What is the speed of the first ball after the collision? Give y
A father racing his son has half the kinetic energy of the son, who has half the mass of the father. The father speeds up by 3.0 m/s and then has the same kinetic energy as the son. (a) What is the
What is the final equilibrium temperature when 30.0 grams of ice at 0°C is mixed with 4.00 grams of steam at 120°C?
During the spin cycle of your clothes washer, the tub rotates at a steady angular velocity of 32.5 rad/s. Find the angular displacement of the tub during a spin of 62.1 s, expressed both in radians an