Answer:
0.25 L
Explanation:
= Initial pressure = 1 atm
= Initial Temperature = 20 °C
= Initial volume = 4.91 L
= Final pressure = 5.2 atm
= Final Temperature = -196 °C
= Final volume
From ideal gas law we have
![\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow V_2=\dfrac{P_1V_1T_2}{T_1P_2}\\\Rightarrow P_2=\dfrac{1\times 4.91(273.15-196)}{(20+273.15)\times 5.2}\\\Rightarrow V_2=0.24849\ L\approx 0.25\ L](https://tex.z-dn.net/?f=%5Cdfrac%7BP_1V_1%7D%7BT_1%7D%3D%5Cdfrac%7BP_2V_2%7D%7BT_2%7D%5C%5C%5CRightarrow%20V_2%3D%5Cdfrac%7BP_1V_1T_2%7D%7BT_1P_2%7D%5C%5C%5CRightarrow%20P_2%3D%5Cdfrac%7B1%5Ctimes%204.91%28273.15-196%29%7D%7B%2820%2B273.15%29%5Ctimes%205.2%7D%5C%5C%5CRightarrow%20V_2%3D0.24849%5C%20L%5Capprox%200.25%5C%20L)
The pressure experienced by the balloon is 0.25 L
Velocity is a vector quantity. A vector quantity has both a magnitude and a direction. Speed only has a magnitude, but no direction. Velocity has both.
I would say the answer is 3 because by falling technically the ball would be kind of moving in the air. Plus potential energy is when for example a soccer ball isnt moving
Answer:
<em>The cyclist is traveling at 130 m/s</em>
Explanation:
<u>Constant Acceleration Motion
</u>
It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.
Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:
![v_f=v_o+at](https://tex.z-dn.net/?f=v_f%3Dv_o%2Bat)
The cyclist initially travels at 10 /s and it's accelerating at a=6m/s^2. We need to know the new speed when t= 20 seconds have passed.
Apply the above equation:
![v_f=10+6\cdot 20](https://tex.z-dn.net/?f=v_f%3D10%2B6%5Ccdot%2020)
![v_f=10+120](https://tex.z-dn.net/?f=v_f%3D10%2B120)
![v_f=130\ m/s](https://tex.z-dn.net/?f=v_f%3D130%5C%20m%2Fs)
The cyclist is traveling at 130 m/s
You must first convert minutes to seconds so 10*60=600
Then multiply the number of seconds by the speed so 600*2=1200 m