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Question1
A frictionless pulley has the form of a uniform solid disk of mass 4.00 and radius 23.0. A 1.80 stone is attached to a very light wire that is wrapped around the rim of the pulley, and stone is released from rest. As it falls down, the wire unwinds without stretching or slipping, causing the pulley to rotate. How far have to the stone fall so that the pulley has 3.40 of kinetic energy?
Question2
The potential energy of interaction between atoms in an ionic solid as a function of parting distance is given by V(r) = -A/r + Br^n, where A, B, and n are constants.
(a) Obtain a relation between the equilibrium lattice distance a and A,B, and n.
(b) The force constant between atoms is given by Ks = (d^2V/dr^2)r=0. If Young's modulus (in units of force/area) is basically given by Ks/a, explain that it varies as a^-4 in ionic solids.
Consider the video tutorial you just watched. Suppose that we repeat the experiment, but this time we replace the original 56- magnet with a more powerful magnet of the same mass.
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm. what's the balloon's new radius
An airplane is flying with a velocity of 97.0 at an angle of 25.0 above the horizontal. while the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog ..
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 187 m. Find the magnitude of the total force on the port
Liquid nitrogen boils at 77.00 K. Would this experiment needs to be altered if we used water, which boils at 373 K? Why.
An 8.m, 220 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can an 770 N person climb before the la..
An oil layer floats on 85 cm of water in a tank. The absolute pressure at the bottom of the tank is 112.0 kPa. How thick is the oil
Draw a ray diagram depicting the following: and object is 20cm in front of a concave mirror whose radius of curvature is 25cm. Calculate the image position using the mirror equation
What shape would you expect the sampling distribution of x bar for n=84 juveniles to have? Does your answer depend on shape of the distribution of verbal IQ scores for all juveniles.
Calculate the y-component of the magnetic force.
One of the mirrors of a Michelson interferometer is moved, and 1000 fringe pairs shift past the hairline in a viewing telescope during the process. haw far was the mirror moved
The image of an object seen in a mirror is twice its actual size. The orientation of the image is the same as that of the object. what is the focal length of the mirror
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