An order-of-magnitude estimate of the volume of this balloon in cm3
IS 4 as it will be in few 10000cm^3 in volume 25*25*25
<span>C) Pressure will compress a gas, reducing its volume and giving it a greater density and concentration of particles.
Let's look at the available choices and determine why or why not they're correct.
A) Pressure will expand a gas, enlarging its volume and reducing its density and concentration of particles.
* What? So increasing the pressure on a gas will make it take up a larger volume? That definitely doesn't match the world I live in. I hope that's true for you as well. Wrong choice.
B) Pressure will magnify a gas, developing its volume and multiplying its density and concentration of particles.
* Lots of interesting sounding words, but they're mostly used in a nonsense fashion. Useful if you're easily fooled by technobabble, but it's another wrong answer.
C) Pressure will compress a gas, reducing its volume and giving it a greater density and concentration of particles.
* OK. Increasing the pressure will compress a gas. So it has a smaller volume. And since it still has the same mass, the density will become greater. And the particles closer together. Everything here matches reality. Good choice.
D) Pressure will accelerate a gas, extending its volume and allowing a smaller density and concentration of particles.
* Most technobabble. Why would the gas be accelerated? No reason that I know of. Wrong choice.</span>
Answer:
Time= t= 1.67 secs
Explanation:
Time= t=?= 1.67 secs
Initial Velocity= Vi = 2m/s
Final Velocity= Vf = 4m/s
Average Acceleration= av= Vf-Vi/t
Putting the values : 1.2m/s²= 4-2/t
Rearranging: t= 2/1.2= 1.67 secs
You could attach both springs to the ceiling and hang the same mass from both. The one that stretches less has the larger spring constant value.
As the headwind comes at the head of the plane, therefore 50 mph headwind slows the plane down.
Thus actual speed of plane with headwind,
Now using the formula ,
Hence plane will take time to complete the distance 1250 mile in 2.5 hours