Hello,
The answer is to "prove your hypothesis".
Reason:
Researchers do experiments to prove there hypothesis they will most likely do the experiment a few times in older to have the conclusion valid therefore proving his or her experiment.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
Explanation:
Formula for finding power : 1/f
Substitution of values:
1 /13.3 = 0.07518 cm
Please mark it as Brainliest!
Yes It can because the black light would be considered solar powered
Answer:
5 cm
Explanation:
Centripetal force varies directly with mass and the square of velocity, and inversely with radius. If k is the constant of proportionality:
F = k m v² / r
When m = 7 g, v = 20 cm/s, and r = 25 cm, then F = 112 dynes. Solving for k:
112 = k (7) (20)² / 25
k = 1
When m = 17 g, v = 40 cm/s, and F = 5440 dynes:
5440 = 1 (17) (40)² / r
r = 5
The radius is 5 cm.
