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A uniform beam of length x = 1.0m and mass 10kg is attached to a wall by a cable at angle θ = 30o to the horizontal, as shown in the figure. The beam is free to pivot at the point where it attaches to the wall.
What is the tension in the cable?
A 20.0 cm \times 20.0 cm square loop of wire lies in the xy-plane with its bottom edge on the x-axis. The resistance of the loop is 0.550 {\Omega}. What is the size of the induced current in the loop at t=0.510
A 3.50nC point charge is placed at the centre of a hollow metal sphere that has an inner radius 4.90cm and an outer radius 12.0cm. The metal sphere itself is charged to 7.00nC. How much charge is on the outside surface of the hollow sphere? How much ..
Point particle a with mass ma is moving in the positive x direction and collides with stationary point particle b with mass mb. Prove that it is not possible for a to “stick” to b so that both particles move together as a single object after the coll..
You have a set of converging lenses with focal lengths 1.05 cm, 14.5 cm, 48.0 cm, and 74.5 cm. find the distance between the objective and eyepiece
The velocity of the transverse waves produced with an earthquake is 8.9 km/s, and that of the longitudinal waves is 5.1 km/s. A seismograph records the arrival of the transverse waves 73 s before the arrival of the longitudinal waves. How far away wa..
A total electric charge of 2.50nC is distributed uniformly over the surface of a metal sphere with a radius of 28.0 cm. Find the value of the potential at 55.0cm from the center of the sphere
An equilateral triangle is formed from three rods, each of length 10 centimeter. Find the magnitude of the electric field at the center of the triangle
A hard-thrown tennis ball is moving horizontally when it bangs into a vertical concrete wall at perpendicular incidence. What are the directions of its velocity and acceleration just before hitting the wall
use a computer to produce a table and graph like those in this section for two interacting two-state paramagnets each
A metal rod of length 2m is moved at 6m/s in a direction perpendicular to its length. What is the potential difference between then ends of the rod
A firehouse shoots water at a speed of 50 m/s from a ground level at an angle of 60 above the horizontal. how far above the ground does it hit the building
A box of mass 5.4 kg is accelerated from rest by a force across a floor at a rate of 2.0 m/s2 for 9.0 s. Find the net work done on the box
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