<u>ANSWER</u>
metabolism
I really hope this helps i am in middle school and this must be a high school question.
Answer:
The centripetal force is 663.95 N.
Explanation:
Given that,
Mass of the child, m = 19 kg
Angular velocity of the merry-go-round,
Distance from the center, r = 2 m
We need to find the centripetal force acting on the child. The centripetal force is given by the formula as :
F = 663.95 N
So, the centripetal force is 663.95 N. Hence, this is the required solution.
Answer:
μ = tan θ
Explanation:
For this exercise let's use the translational equilibrium condition.
Let's set a datum with the x axis parallel to the plane and the y axis perpendicular to the plane.
Let's break down the weight of the block
sin θ = Wₓ / W
cos θ = W_y / W
Wₓ = W sin θ
W_y = W cos θ
The acrobat is vertically so his weight decomposition is
sin θ = = wₐₓ / wₐ
cos θ = wₐ_y / wₐ
wₐₓ = wₐ sin θ
wₐ_y = wₐ cos θ
let's write the equilibrium equations
Y axis
N- W_y - wₐ_y = 0
N = W cos θ + wₐ cos θ
X axis
Wₓ + wₐ_x - fr = 0
fr = W sin θ + wₐ sin θ
the friction force has the formula
fr = μ N
fr = μ (W cos θ + wₐ cos θ)
we substitute
μ (Mg cos θ + mg cos θ) = Mgsin θ + mg sin θ
μ =
μ = tan θ
this is the minimum value of the coefficient of static friction for which the system is in equilibrium.
Hello! The 7 inches on a blueprint represents the actual length of 38.5 feet. To find the scale on the blueprint, let's divide the actual length by the amount of inches on the blue print. 38.5 / 7 is 5.5. There. 1 in = 5.5 ft.
is there multiple choice?