Answer:
Mass of the skater, m = 72.75 kg
Explanation:
It is given that,
Radius of the circular path, r = 31 m
Speed of the skater, v = 14 m/s
Centripetal force, F = 460 N
We need to find the mass of the skater. It can be determined using the formula of centripetal force. It is given by :
m = 72.75 kg
So, the mass of the skater is 72.75 kg. Hence, this is the required solution.
Answer:
energy transform mechanical to motion
Answer:
Focal length, f = 0.43 meters
Explanation:
It is given that,
Power of the reading glasses, P = 2.3 D
We need to calculate the focal length of the reading glasses. The relationship between the power and the focal length inverse i.e.
f = 0.43 m
So, the focal length of the reading glasses found on the rack in a drugstore is 0.43 meters.
<span>1.0 gram (g) of electrons would contain 10^27 electrons
Electrons have an electric charge of −1.602×10−19 coulomb
so total charge of 1 g electrons = -1.602 x 10^-19 x 10^27 = -1.602 x 10^8</span>
Answer:
yeah righto the correct answer mate would be D) :)
