Answer:
V1 = 2221.33 L
Explanation:
The system is about a ideal gas. Then you can use the equation for ideal gases for a volume V1, temperature T1 and pressure P1:
(1)
And also for the situation in which the variables T, V and P has changed:
(1)
R: constant of ideal gases = 0.082 L.atm/mol.K
For both cases (1) and (2) the number of moles are the same. Next, you solve for n in (1) and (2):
Next, you equal these equations an solve for T2:
Finally you replace the values of P2, V2, T1 and T2:
Hence, the initial volume of the gas is 2221.33 L
Answer:
5.08m
Explanation:
Charge on an electron=
Number of electrons=2
Mass of electron=
Weight of electron=mg
Where g=Acceleration due to gravity=9.8
Using the formula
Weight of an electron=N
Force between two electrons =Weight of an electron
We know that
Electrostatic force =
Where Charge
r=Distance between two charges
Using the formula
Hence, the distance between two electrons=5.08m
Answer:
The change in the car's momentum is equal to -8910 kgm/s.
Explanation:
Given that,
The mass of a car, m = 990 kg
Initial speed, u = 22 m/s
Final momentum, v = 13 m/s
We need to find the change in the car's momentum. The change in momentum of the car is given by :
So, the required change in the car's momentum is equal to -8910 kgm/s.
The fish is actually farther from you then you think