Answer:
Its D. bring a timer to the presentation to keep on time
Explanation:
Presentations don't have to be timed, and usually aren't.
When presenting, you need to talk at a normal speed, otherwise people won't understand what you are saying because your talking so fast.
Not to mention some presentations are long, some are short. It really doesn't matter. Hope this helps!
Hi there!
To find the volume of a rectangular prism, we need to multiply all of its dimensions together.
In this case, we would multiply the length, width, and depth:
4 * 4 * 8
= 16 * 8
= 128
So, the answer is 128 cubic feet.
Hope this helps!
Answer:
Kinetic energies of all the gases are same.
Explanation:
The average kinetic energy of molecules of a gas is given by the formula:
K.E = (3/2)KT
where,
K.E = Average Kinetic Energy of the molecule
K = Boltzman's Constant = 1.38 x 10^-23 J/K
T = Absolute temperature of gas
Since, all the gases are in a mixture, and the temperature of the gases must be same and equal to the temperature of mixture.
Therefore, all the terms in the formula are constant and the <u>Average Kinetic Eenergies of all the gases in the mixture (namely, Neon Ne, Krypton Kr, Radon Rn), equal.</u>