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The molar mass oxygen gas is 32.0 x 10^-3 kg/mol. If the gas is at 21 degrees C, find the root-mean-square speed for an oxygen molecule.
What is the force acting on the board because of the left support when a diver of mass 63.20 kg stands at the end of the board over the water? Suppose that these forces are vertical.
A positive charge of magnitude Q1 = 6.5 nC is located at the origin. A negative charge Q2 = -6.5 nC is located on the positive x-axis, Calculate the angle in degrees of the electric field at point P relative to the positive x-axis
Two 10-cm-diameter charged rings face each other, What is the electric field at the center of the left ring
Given a capacitor whose plates measure 15cm by 3.7 cm and are separated by a 2.2mm air gap. Calculate he maximum amount of energy which can be stored in the capacitor under these conditions
A sphere of mass 3.00 g is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 28.0° with the vertical. Determine the tension in the cord
If the frequencies are swept over a plusminus.gif2.00% range centered on 86.0 MHz, what is the range of wavelengths broadcast
A certain EM wave has a wavelength of 4 X 10 ^-7 m and a speed of 2.5 X10^8 m/s in a partcular material ( not a vacuum). what is the wavelength of this wave in a vacuum
The rms speed of the molecules in 1.8 of hydrogen gas is 1600 m/s. What is total translational kinetic energy of the gas molecules.
An elderly sailor is shipwrecked on a desert island, but manages to save his eyeglasses. What is the magnifying power of the telescope he can construct with these lenses
Status Newton's First Law of motion.
A skier of mass 64 kg is being towed up a slope ( µ = 15 ±) by a towrope at a constant speed of 3 m/s, what is the force (in N) that the towrope applies to the skier
A jet plane passes over you at a height of 4990 m and a speed of Mach 1.75. Find the Mach cone angle
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