Solve Newton's laws for the disk and the mass. Obtain a relation that solves for the moment of inertia I in terms of the quantities a, R, m and g I=stuff(R,m,g,a)
Solve Newton's laws for the disk and the mass. Obtain a relation that solves for the moment of inertia I in terms of the quantities a, R, m and g I=stuff(R,m,g,a)
A climber (m=60kg) is one fourth the way up a 10 meter ladder with mass of 20kg that is resting against a smooth frictionless wall. The angle between the ladder and the ground is 60 degrees. The magnitude...
I would like to find an question or example of the calculation ( eg. calculate W/m^2? How many kWh of electricity could be generated over a year by a typical system (or a planned system)? If this...
Consider a long 15m uniform wooden beam (mass=60kg) attached horizontally to a wall that can only support a vertical load. The horizontal component of this force of the wall on the beam is identically...
A motorist with a flat tire is trying to loosen a lug nut on a wheel with the flat tire. The motorist (mass=60kg) lifts his feet off the ground and places his full weight on the end of a lug...
The motion of a 25kg mass on the end of a string is uniform circular motion. The magnitude of the tangential velocity of the mass is 5 m/s. The circular path is horizontal and the magnitude of the...
A tensor and vector have components Tαβγ and vα respectively in a coordinate system xμ. There is also another coordinate system x'μ. Express Tαβγ, Tαβγ and T'αβγ in terms of Tαβγ then...
The dielectric material between the plates of a parallel plate capacitor always has some nonzero conductivity σ. Let A represent the area of each plate and d the distance between them. Let K represent...
Consider a tree with 3 cables (all in the horizontal x y plane) attached for support. The first cable is oriented along the positive x axis and has a tension of 140 Newtons. The second cable is oriented...
In a very popular lecture demonstration, a project is fired at the falling target as an Figure P3 .59. The projectile leaves the gun at the same instant that the target is dropped from rest. Assuming...
A rowboat crosses the river with the velocity of 3.30mi/h at an angle 62.5° north of west relative to the water. The river is 0.505mi wide and carries and eastward current of 1.25mi/h. How far upstream...
If the current carried by a conductor is doubled what happens to a)the charge carrier density b)the current density c)the electron drift velocity d)the average...
Suppose you wish to fabricate a uniform wire from a mass m of a metal with density Pm and resistivity p. If the wire is to have a resistance of R and all the metal is to be used, what must be a)the...
Consider a head-on collision between two billiard balls. One is initially at rest and the other moves toward it. sketch a position vs time graph for each ball, starting with time before the collision...
The intensity of the earths electric field near its surface is 130 N/C pointing down. What is the earth's net charge? Assuming that this field is caused by it (Use gauss's law)
A spacecraft is in a circular orbit around a schwarzschild black hole of mass M. a) find expressions for the orbital period as a function of r determined by an observer at rest at infinity...
Buoyancy and high altitude ballooning. Buoyant forces are supplied by every fluid (liquid or gas), it’s the mechanism that sends high altitude balloons all the way up to the stratosphere...
A pinball is moving through a pinball machine at 1 m/s and hits an accelerator. When it leaves the accelerator, it is traveling at 2 m/s over the distance of 2.7 cm. How long is the pinball in the...
Shirley Temple was curling her hair when she dropped the curling iron. The curling iron fell 1.899 m to the floor. How long (in seconds) did it fall?
Water and oil (which don't mix) are poured into a U-shaped tube, open at both ends. They come to equilibrium. What is density of the oil? the top of the tube...