Answer:
Explanation:
The magnitude of the gravitational force is inverseley proportional to the square of the distance of separation of the masses. So, we have:
We have to calculate the force () when they are 5.0 cm apart:
21+10=31 because you can see that 21 and 10 are in metres while 12 is in seconds so 21+10=31 is the answer.
Answer:
(4) A = 3 A, A₂ = 11 A
(5) 7 A
Explanation:
(4)
From the diagram,
A = 3+6+2
A = 11 A
V = A₂R
A₂ = V/R₂............ Equation 1
Given: V = 12 V, R₂ = 4 Ω
Substitute these values into equation 1
A₂ = 12/4
A₂ = 3 A
(5) Applying,
V = IR'
I = V/R'............ Equation 1
Where V = Voltage, I = cuurent, R' = total resistance.
But,
1/R' = (1/3)+(1/4)
1/R' = (3+4)/12
1/R' = 7/12
R' = 12/7 Ω
Given: V = 12 V
Substitute these values into equation 1
I = 12/(12/7)
I = 7 A
Therefore
A = 7 A
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Here's a picture of Kinematic formulas
The kinematic formulas are a set of formulas that relate the five kinematic variables listed below.
Δx - Displacement
t - Time interval
v0 - Initial velocity
v- Final velocity
a - Constant acceleration