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The temperature of your skin is approximately 36oC. Find the wavelength at which the peak occurs in the radiation emitted from your skin? Answer in units of nm.
You and your friend Peter are putting new shingles on a roof pitched at 25?. If the coefficient of kinetic friction between the box and the roof is 0.51, with what speed should you push the box to have it gently come to rest right at the edge of th..
A farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1.750 diopters. How far is her near point from her eyes
Illustrate what is the magnitude of the change in momentum of the ball while in contact with the bat if the ball leaves with a velocity of (a) 18 m/s, vertically downward, and (b) 18 m/s, horizontally back toward the pitcher?
A student doing an experiment pours 0.160kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.240kg of water. What was the initial temperature of the shot
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
the mass of a copper atom is 2.58 10-25 kg and the density of copper is 8 920 kgm3 .a determine the number of atoms in
A 10 kg box is on the flatbed of a truck that is accelerating along a straight horizontal road. What is the max acceleration the truck can reach without the box falling
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the wavelength of the waves on the string
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.542, How much force is needed to keep the book moving at constant speed once it begins moving
A jet flying at 132 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 1.88 105 kg
A supertanker filled with oil has a total mass of 1.04 109 kg. If the dimensions of the ship are those of a rectangular box 235 m long, 76 m wide, how far the bottom of the ship is below sea level
The plates of a parallel-plate capacitor in vacuum are 25 micrometer apart and 88 square cm in area, Calculate the charge on each plate, the capacitance and the energy density
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