Answer:
The force exerted by the weight lifter is 81.7 N.
Step-by-step explanation:
We can find the force exerted by the weight lifter using the definition of work:
(1)
Where:
F: is the force
d: is the displacement
We have W = 9.8 J of work and d = 0.12 m, so by solving equation (1) for F we have:

Therefore, the force exerted by the weight lifter is 81.7 N.
I hope it helps you!
Answer:
The answer I believe is -185 1/7
Step-by-step explanation:
I followed PEMDAS.
Answer:
20.32 cm for each bracelet.
Step-by-step explanation:
121.92 ÷ 2 = 60.96
60.96 ÷ 3 = 20.32
Answer:
B. 171
Step-by-step explanation:
<span>S = 2πRh + 2πR2
S -2πR2= 2πRh
(S -2πR2) / (2πR) = h</span>