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The loop is in a uniform magnetic field of magnitude 89.0 mT whose direction is parallel to the current in the 130 cm side of the loop. What are the magnitude of the magnetic forces on each of the t
A block of mass 6.2 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 42.0 N at an angle 22.4° above the horizontal. What is the magnitude of the acceleration
A circular loop in the plane of the screen lies in a 0.72 T magnetic field pointing into the screen. The loop's diameter changes from 18.5 cm to 6.0 cm in 0.50 s. What is the magnitude of the averag
On a very muddy football field, a 110 kg linebacker tackles an 85 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.6 m/s north and the halfback is slidi
What are the minimum dimensions for the rear-view mirror if the driver is to be able to see the entire width and height of the rear window in the mirror without moving her head?
Metabolizing a candy bar releases about 106 joules. How fast must the candy bar travel to have the same 106 joules in the form of kinetic energy? (Assume the candy bar's mass is 0.2 kg.)
Suppose the needle moves 8.2 mm from its highest to its lowest position and it makes 27 stitches in 8.5 s. What is the maximum needle speed?
A point charge 9.00 {rm nC} is at the center of a cube with sides of length 0.180 {rm m}. What is the electric flux through the surface of the cube?
You're carrying a 3.6m long, 25kg pole to a construction site when you decide to stop for rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip. Ho
A 63 kg swimmer jumps off a 9.5 m tower. The swimmer comes to a stop 2.0 m below the surface. Find the net force exerted by the water.
You can determine the speed of a moving bullet by allowing the bullet to pass through two rotating paper disks mounted a distance.
Two meters from the left end is the 500 N washing equipment. Joe is 0.500 m from the right end and weighs 920 N. Given that the scaffold is in rotational and translational equilibrium, what are the
A car traveling at a constant speed of 18.5 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acce
A 52 kg box is being pushed a distance of 7.0 m across the floor by a force vector P whose magnitude is 165 N. The force vector P is parallel to the displacement of the box. The coefficient of kinet
What are the magnitude and direction of the electric field 12.0 cm directly above an isolated 45.9 10-6 C charge? 1 N/C 2 ---Direction--- away from the positive charge neither of these toward the posi
A conducting coil of 1800 turns is connected to a galvanometer, and the total resistance of the circuit is 50.0. Find the magnitude of the magnetic field.
A 747 airliner reaches its takeoff speed of 170 in 35.3. What is the magnitude of its average acceleration?
A rifle that shoots bullets at 436 m/s is to be aimed at a target 44.2 m away. If the center of the target is level with the rifle, how high (in cm) above the target must the rifle barrel be pointed
A two-ended "rocket" that is initally stationary on a frictionless floor, with its center a the origin of an x axis. The rocket consists of a central block C(of mass M = 6.00kg) and blocks L and R (
A 195 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a battery with an emf of 24.0 V. If the 195 pF capacitor stores 125 pC of char
An airplane with a mass of 2.6 106 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast must the air flow over the upper surface
The particle is moving in the +z direction solve the Schrodinger equation to derive the allowed wave functions for this particle.
A carpenter places a board weighing 30 lb on the edge of the roof 24 ft above the ground. How much potential energy does the board have in relation to the ground?
A cannon tilted upward at 20° fires a cannonball with a speed of 120 m/s. What is the component of the cannonball's velocity parallel to the ground?
You are swinging your younger sister in a horizontal circle of radius 0.81 m. Her mass is 26 kg and you arrange it so she makes one revolution every 1.5 s.