The correct answer to the question is 8.33 minutes.
CALCULATION:
The distance of earth from sun s = 150 million km.
We know one million = 10 lakh =
Also 1 km =
Hence, the distance s =
=
The speed of light c = 300,000 km per second
=
We are asked to calculate the time.
The time of the reaching earth is calculated as -
We know one minute = 60 second.
Hence, 500 seconds =
= [ans]
Gases have three characteristic properties:
(1) they are easy to compress,
(2) they expand to fill<span> their containers, and
(3) they occupy far more space than the liquids or solids from which they form.</span>
Answer:
P_2 = 62.69 psi
Explanation:
given,
P₁ = 70 psia T₁ = 55° F = (55 + 459.67) R
P₂ = ? T₂ = 115° F = (115 + 459.67) R
we know,
p = ρ RT
ρ is the density which is constant
R is also constant
now,
P_2 = 62.69 psi
Hence, the increase in Pressure is equal to P_2 = 62.69 psi
Note : Be careful with speed and velocity, even the formula is same that
1. If we would like to find the velocity, we must calculate the distance from initial to final,
,
2. If we would like to find the speed, we must calculate the total distance that travelled (
.
So, in this question, because it return back to its initial point so (delta)x = 0, so average velocity is 0 m/s.
Answer:
400 Newtons to the right.
Explanation:
You have 300 Newtons that are being applied to the right and you also 100 Newtons to the right. When calculating net force with the forces that go the same direction, you add them. 300 plus 100 is 400. Therefore, it is 400 Newtons or N to the right. Hope this helps!