It was 40 I hope it helps
The time it takes the baton to complete one spin will be 0.56 s. Option B is correct.
<h3>What is centripetal acceleration?</h3>
The acceleration needed to move a body in a curved way is understood as centripetal acceleration.
The direction of centripetal acceleration is always in the path of the center of the course. The total acceleration is the result of tangential and centripetal acceleration.
The entire question is;
"How long does it take the baton to complete one spin?
A twirler’s baton is 0.76 m long and spins around its center. The end of the baton has a centripetal acceleration of 47.8 m/s2.
a.0.31 s
b.0.56 s
c.4.3 s
d.70 s"
The given data in the problem;
Length of baton,L = 0.76 m
Centripetal acceleration,
The centripetal acceleration is found by;

Substitute the given value:

The time it takes the baton to complete one spin will be 0.56 s.
Hence option B is correct.
To learn more about centripetal acceleration, refer to the link;
brainly.com/question/17689540
#SPJ1
Answer:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
Answer:
time spent = 0.2276
Explanation:
given data
distance = 135 mi
usual speed = 65 mph
today speed = 73 mph
solution
we get here time that is express as
time =
...................1
usual time =
= 2.0769 h
today time =
= 1.8493 h
so we get here time spent as
time spent = 2.0769 h - 1.8493 h
time spent = 0.2276
Initially the total energy of the object, which is only PE.
PE = mgh = 0.2kg * 10m/s² * 3.25m = 6.5 J
When it is at 1.5m above the ground, it has both Kinetic and Potential Energy.
At 1.5m above the ground:
<span>PE = mgh = 0.2kg * 10m/s² * 1.5m = 3 J
</span>
But at such mid level, PE + KE
PE + KE = Total (Conserved)
3 + KE = 6.5
KE = 6.5 - 3 = 3.5
Kinetic energy at 1.5 above ground = 3.5 J