In an ideal monatomic gas, the average of the square of the speed of the molecules in the gas increases as the number of molecules is increased
What will be an ideal response?
No, the average kinetic energy will be the same as we add molecules. This means
that the gas will have the same square of the speed.
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A transverse periodic wave is represented by the equation z(y, t) = 1.50 cm sin(1,250 rad/s t + 10.0
What is the direction of the velocity of the wave?
A. the x direction B. the y direction C. the z direction D. the t direction
Why do we think that the solar system formed from a rotating, collapsing gas cloud that ended up as a disk orbiting the Sun?
a. Most of the planets revolve and rotate in the same direction and in the same plane. b. We see clouds of gas and dust in space with apparently young stars in them. c. We see disks around young stars. d. All of the above.
What is the temperature increase of 3.00 kg of water when heated by a 900-W immersion heater for 9.00 min? (cw = 4 186 J/kg/°C)
a. 77.4°C b. 48.4°C c. 38.7°C d. 19.4°C e. 0.645°C
Divergent boundaries are areas of
A) tensional forces that stretch the crust and generate a spreading center. B) compressional forces that crunch the crust and generate a spreading center. C) compressional forces that crunch and shorten the crust by folding and faulting. D) plate collision.