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A square current loop 4.5cm on each side carries a 460mA current. The loop is in a 1.2T uniform magnetic field. The axis of the loop, perpendicular to the plane of the loop, is 30? away from the field direction.
What is the magnitude of the torque on the current loop?
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg, What is the total kinetic energy of the two blocks after the collision
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 10.1 m to a store. At what angle is the escalator inclined above the horizontal
A 2.0 kg mass and a 3.0 kg mass are attached to a lightweight frictionless pulley. The masses are free to move. Find the acceleration of the smaller mass
The position vector,r, in meters, of a particle moving in the x-y plane, is giving by the following equation: r=i(2t^2-8t-12)+j(2t^3-18t^2+48t+25), find the direction of the velocity vector at the instant
Prove that when reflected, a ray of light incident upon a plane mirror rotates through an angle of 2q if the mirror is rotated through an angle of q. The mirror rotates about an axis that is perpendicular to the plane of incidence of the ray.
Consider a spacecraft in an elliptical orbit around the Earth.At the perigee it is 400 km away from the earth's surface; What is the period of the spacecraft's orbit
Blue whales apparently communicate with each other using sound of frequency 17.0, What is the wavelength of such a sound in seawater
A rectangular block of wood floats in a calm lake. Show that, if friction is ignored, when the block is pushed gently down into the water and then released
A uniform disk with a mass of 875 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. how much work does Sam do to stop it
Suppose a 63.00 kg boy and a 50.00 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.00 m/s2, find out the magnitude of the acceleration of the boy toward girl.
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion. What will be the temperature increase of the ball after one bounce
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