Answer:
<em>61.9°</em>
Explanation:
The formula for calculating the workdone is expressed as
Workdone = Fdsin theta
F is the force applied on the crate
d is the distance covered
theta is the angle that the rope makes with the horizontal
Given
F = 40N
d = 7m
Workdone = 247J
Substituting into the formula:
247 = 40(7)sin theta
247 = 280sin theta
sin theta = 247/280
sin theta = 0.88214
theta = arcsin(0.88214)
theta = 61.9°
<em>Hence the angle that the rope makes with the horizontal is 61.9°</em>
The charge<span> of that </span>atom<span> is +1</span>
The period of a mass-spring system is:
T = 2π![\sqrt{m/k}](https://tex.z-dn.net/?f=%5Csqrt%7Bm%2Fk%7D)
T = period, m = mass, k = spring constant
Given values:
T = 8π s
k = 2 N/m
Plug in and solve for m:
8π = 2π![\sqrt{m/2}](https://tex.z-dn.net/?f=%5Csqrt%7Bm%2F2%7D)
= 4
m/2 = 16
m = 32 kg
Choice A
Answer:
They are all a cycle!
Explanation:
They just are all cycles.