The bigger one as the luminosity has a direct exponential relationship with R of the star so the star which has more surface area will be more luminous than the smaller one
An equation showing the relationship between the THREE forces is R -W +F= 0
<h3>What is moment of force?</h3>
The equal and opposite force acting at a point from the axis of rotation is called the moment of force.
M = F x r
Given is a wheelbarrow and stones with a total mass of 43 kg. The wheelbarrow is in equilibrium with two of the three forces acting on it
Taking moment about the wheel, we get
-43x 9.81 x 0.6 + F x 1.5 =0
F = 43 x 0.6/1.5
F = 168.732 N (upward force)
Summation of forces in y direction is zero.
R -W +F= 0
Where, R is the normal force, W is the Weight force and F is the applied force.
Thus, this is the equation representing all the three forces acting on wheelbarrow.
Learn more about moment of force.
brainly.com/question/6278006
#SPJ1
Answer:
Explanation
Given that
Temperature changes from
Initial temperature T1 = 300K
Final temperature T2 = 600K
v1 = average speed of gas molecule before absorption of heat
v2 = average speed of gas molecule after absorption of heat
Ratio v2/v1 =?
Related to average speed,
Vrms = √(3RT/M)
We will take 3, T and M as constant,
Then,
Vrms ∝ √T
Then,
Vrms / √T = k
So,
V1 / √T1 = V2 / √T2
Cross multiply
V1 • √T2 = V2 • √T1
Make V2 / V1 subject of formula
V2 / V1 = √T2 / √ T1
V2 / V1 = √600 / √300
We know from indices that
√a / √b = √(a/b)
Then,
V2 / V1 = √(600 / 300)
V2 / V1 = √2
Then, The ratio v2 / v1 is √2
So, if T is double, then, V increases by a factor of √2
Itssssssss c because a goes to c
