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A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 15 A of current through the torso of a person in 2.3 ms. (a) How much charge moves during this time? (b) How many electrons pass through the wires connected to the patient?
A barbell spins around a pivot at its center . The barbell consists of two small balls, each with mass m = 460 grams, at the ends of a very low mass rod whose length is L = 24 cm. The barbell spins with angular speed ω = 50 radians/s.
You toss a ball straight up in the air. Immediately after you let go of it, what forces are acting on the ball
A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 116 m, at what frequency must it rotate so that it simulates Earth's gravity?
A capacitor is constructed of two concentric conducting cylindricalshells. The radius of the inner cylindrical shell is 2.29 10-3 m, and that of the outer shell is2.43 10-3 m.
An unstable atomic nucleus of mass 1.92 10-26 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.00 10-27 kg, Find the velocity of the third particle
If the coefficient of static friction is 0.500, what minimum force magnitude is required from the rope to start the crate moving
Consider a spherical asteroid with a mass of 6.00×10^15 kg and a radius of 9.70 km. What is the speed of a satellite orbiting 6.00 km above the surface
The speed of an arrow fired from a compound bow is about 29 m/s. An archer sits astride his horse and launches an arrow into the air elevating the bow at an angle of 35 degrees above the horizontal, What is the arrow range
A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is i..
Fully stripped (all electrons removed) oxygen (16O) ions are accelerated from rest in a particle accelerator using a total potential difference of 10.0 MV. What is the total power the beam dump has to absorb
A long solenoid has 80 turns/cm and carries current i. An electron moves within the solenoid in the circle of radius 3.10 cm perpendicular to the solenoid axis. The speed of an electron is 0.0330c (c = speed of light). Find current i.
A plank 2.00 cm thick and 15.1 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
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