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In an exercise to heat up some cold, hard cash, a coin with a massof 6.25 g that has been kept in the freezer at a temperature of-18.05 deg-C is taken out and placed into a thermos containing 14.3ml of warm water at 35.00 deg-C. The final temperature of the wateris found to be 33.17 deg-C. What is the specific heat of the coin?If the initial diameter of the cold coin at -18.05 deg-C is 24.3422mm and the final diameter of the coin at 33.17 deg-C is 24.3659 what is the coefficient of linear thermal expansion of the coin?
What are the three longest wavelengths for standing waves on a 294-cm-long string that is fixed at both ends? If the frequency of the second-longest wavelength is 58Hz , what is the frequency of the third-longest wavelength?
a charge uniform linear density 9.4 ncm lies on a string that is stretched along an x axis from x 0 to x 3.0 m.
electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point
A spherical shell of radius R = 8.0 cm has a total charge Q = - 900nC uniformly distributed on its surface, Write the net electric field at the point P in unit vector notation
The acoustical system is driven by speaker emitting a 432Hz note. If destructive interference occurs at a particular instant, by what least amount amount must the difference of two path lengths in the U-shaped tube be increased so as to hear const..
The diameter of a sphere is measured to be 6.94 in. Find the radius of the sphere in centimeters
The centers of a 12 kg lead ball and a 100 g lead ball are separated by 10 cm. What gravitational force does each exert on the other
A slingshot consists of a light leather cup, containing astone, that is pulled back against two parallel rubber bands. Ittakes a force of 15 N to stretch either one of these bands 1.0cm.
Calculate approximately E at a distance of 40 m (large relative to the plate size) by assuming that the plate is a point charge.
Finally is the length is unchanged but the mass is equal to 0.500kg find the period T of the pendulum that is independent of the angle.
For an equilateral prism, the angle of incidence of 49 degree at boundary 1, Calculate the angle of refraction at boundary 2
A particle leaves the origin with an initial velocity v=(2.4m/s)x and moves with constant acceleration a=(-1.90 m/s2)x + (3.20m/s2)y. What is the particles velocity at this time
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