Answer:
16) 9ft, C
17) 1440 cm^3, D
18) 314 m^2, B
Step-by-step explanation:
16) 18 / 6 = 27 / x
18x = 162
x = 9 (C)
17) 24 / 1,920 = 18 / x
24x = 34,560
x = 1440 (D)
18) Surface Area of a sphere = 4 * pi * radius^2 (4r^2)
SA = 4pi(5)^2
SA = 4pi25
SA = 100pi
SA = 100(~3.14)
SA = 314 (B)
Answer:
The time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.
Step-by-step explanation:
Given the equation
-----------Equation 1
where d, in inches of the pendulum of a grandfather clock from the center.
Comparing with the standard equation of an oscillating pendulum bob.
----------Equation 2
where ω = angular velocity
t = time taken
α = The angular displacement when t = 0
Comparing equation 1 and 2,
α = 0

Recall that
[/tex]
f = 0.8 Hertz
Recall that 

T = 1.25 seconds
Therefore, the time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.
To find the percentage of a fraction, we first divide the numerator by the denominator
23/40 = 0.575
Then, we multiply it by 100 in order to find the percentage.
(100)(0.575) = 57.5%
This is your final answer.
Answer:
25.1349955242 m²
Explanation:
C = 2√πA
This means that the circumference is 2 multiplied by the square root of pi. multiplied by the area.
Pi. - 3.14
Area - 50.3
√πA - 12.5674977621
2 · 12.5674977621 = 25.1349955242
Circumference - 25.1349955242