Winston stands on the edge of a building's flat roof, 12 m above the ground, and throws a 147.0-g baseball straight down. the ba
ll hits the ground at a speed of 18 m/s. what was the initial speed of the ball?
1 answer:
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Answer:
636.619772368 A
Explanation:
= Torque =
B = Magnetic field of Earth =
A = Area
d = Diameter = 20 cm
Current is given by
The current is 636.619772368 A
Answer:
Volume of each grain of sand:
radius of the spherical grain is given,
The grains are made up of silicon dioxide.
The density is equal to
Then, the mass of each grain is given by: