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The masses of 1 mole of various gases are as follows: hydrogen about 2 grams, helium about 4 grams, nitrogen about 28 grams, oxygen about 32 grams and carbon dioxide about 44 grams. On the average how fast does a molecule of each gas move at 333 Celsius?
the level of the water in an enclosed water tank is 40m above ground level. the pressure in the air space above the
a positive charge of 4.40 uc is fixed in place. from a distance of 3.00 cm a particle of mass 6.70 g and charge 3.20 uc
two circular loops are centered on the x-axis parallel to the yz-plane. the smaller loop is stationary with radius r
A metallic sphere has a charge of -9.4 nC. A negatively charged rod has a charge of -5.2 nC. The rod is then placed on the sphere and both objects reach an equilibrium state at which they have the same charge. How many electrons were transferred for ..
A doorway acts as a single slit for light that passes through it, but a doorway is much larger than the wavelength of visible light, Estimate the width of the doorway
A steel ball of mass 0.76 kg strikes a brick wall in anelastic collision. Incomming, it strikes the wall moving 63 degreesdirectly above the line normal (perpendicular) to the wall. Itrebounds off the wall at an angle of 63 degrees directly below ..
The friction force in the sled is 1000N and the angle between the two ropes is 20 degrees. Explain how hard must each player pull to drag the coach at a steady 2.0 m/s?
What is the velocity of each ball after the elastic collision? What will be the highest height of each ball after the elastic collision .
How to find out an initial speed of the bullet
Light of wavelength 500 nanometer enters glass having an index of refraction of 1.5. Evaluate the wavelength of the light wave in the glass
An 18-year-old runner can complete a 10.0-km course with an average speed of 4.49 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How much later should the younger runner start in order to finish the course at..
Find the mass of this objectAn object of unknown mass is attached to an ideal spring with force constant 130 and is found to vibrate with a frequency of 5.60 Hz. found to vibrate with a frequency of 5.60 Hz. Find the period. Find the angular veloci..
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