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a spherical ball hanging on a string on a smooth, frictionless wall. The mass of the ball is m, its radius is R, and the length of the spring is L. Draw a "free body" diagram with all the forces acting on the ball. Find the normal force between the ball and the wall.
two movers push horizontally on a refrigerator. one pushes due north with a force of 150 n and the other pushes due
The rms value of the electric field in an electromagnetic wave is Erms = 480 V/m. Find the average energy density
A car accelerates from rest to a kinetic energy of 2.06 x 105 J in a distance of 638 m. How much force did the car's engine deliver to produce this acceleration.
A gas sample enclosed in a rigid metal container at room temperature (20.0°C) has an absolute pressure p1. The container is immersed in hot water until it warms to 40.0°C. What is the new absolute pressure p2?
A 42-g ball consists of a plastic spherical shell and a water-filled core. the shell has an outside diameter equal to 56.2 mm, What is the density of the plastic
An uncharged capacitor is connected to a 44.0V battery until it is fully charged, after which it is disconnected from the battery. What will now be the voltage between the plates
A magnetic field is oriented at an angle of 39 to the normal of a rectangular area 4.8cm by 7.7cm If the magnetic flux through this surface has a magnitude of 4.6×10-5 T-m2 ,
If in general R were calculated as R=V/I, which curcuit arrangement in part A of experiment would have the smalles ERROR? define.
A man stands on a scale in an elevator that is accelerating upward. compute the magnitude of the acceleration of the elevator?
A uniform plate of height 1.170 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 1.600 x2. Find the moment of inertia of the plate about the y-axis
Can someone help me solve problem 181, chapter 12 from Engineering Mechanics statics and dynamics, 13th edition. The question is, simply, r = 4sin(2theta), theta = (3t^(3/2))rad. Determine the velocity and acceleration when theta = 60 degrees.
A laser has a power of 22.9 W and a beam radius of 0.515 mm. Find the intensity of the laser
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