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Solve the following problems:
Problem 1) By what percentage does the density of a bowling ball change (assuming it is a uniform sphere) when it is taken from room temperature (68 µF) into the cold night air in Nome, Alaska (-40 µF). Assume the ball is made out of a material that has a linear coefficient of expansion of 6.85 × 105 µC.
Problem 2) If the diameter of the hole is 9.00cm at 20oC and the temperature of the oven is 200?C, what will be the new area of the hole?
Explain the each part of above problem in detail for help.
The position of a particle moving along an x axis is given by x = 14.0t2 - 3.00t3, where x is in meters and t is in seconds. find the maximum positive velocity reached by the particle
If you run away from a plane mirror at 2.40 m/s, find at what speed does your image move away from you
A76 kg window cleaner uses a18 kg ladder that is 6.0 m long. He places one end on the ground2.9 m from a wall, rests the upper endagainst a cracked window, What is the angle of this force on the ladder
A dockworker applies a constant horizontal force of 85.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
a 5 kg mass is attached to the end of a 1.0-m string. The system is whirled in a horizontal circular path. What is the maximum speed of the mass if the string is not to break
a straight nonconducting plastis wire 8.5 cm long carries a charge density of 175ncm distribute uniformly along its
A lead ball is dropped into a lake from a diving board 9.10 meter above the water. Find with what velocity does ball hit the water surface
A dipole consists of charges +e and -e separated by 0.67 nm. It is in an electric field E = 2.2 × 104 N/C. What is the value of the dipole moment
There are two identical, positively charged conducting spheres fixed in space, find the initial charge on each sphere, q1 and q2 if initially q1
In coulomb scattering of 7.50MeV protons by a target of 7-Li, what is the energy of the elastically scattered protons at 90 degrees
An object of mass .550 kg is lifted from the floor to a height of3.50m at a constant speed. How much work is done by the lifting force? How much work is done by the Earth on the object? What is the net work done on the object?
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 20 MW and lasts 2.3 ns. What is the total energy of the pulse
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