Median plane - Sagittal plane through the midline of the body; divides the body or any of its parts into right and left halves.
Answer:C
Explanation:
If you are holding the ball that would be the ball would have potential energy since it it not moving. Once you drop the ball it will have kinetic energy since it’s moving. If you drop the ball from 6ft it will have more kinetic since it will have more time to accelerate. If you drop the ball from 2ft then it will have less kinetic energy since it is closer to the ground and won’t have beeping time to accelerate and get rid of the potential energy.
Missing part in the exercise. Complete text:
"A hair dryer draws 14.5 A when plugged into a 120-V line. Assume direct current.
(a) What is its resistance? Express your answer to two significant figures and include the appropriate units."
(b) How much charge passes through it in 11 min ? Express your answer to two significant figures and include the appropriate units.
Solution
(a) We can calculate the resistance by using Ohm's law:

Since we know that
and
, we can find R:

(b) The current is equal to the quantity of charge by unit of time:

In our problem, t=11min=660 s, so we can calculate the charge passed through the hair dryer:

Answer:
viscosity = 0.051725 N/m-s
Explanation:
Given data
diameter = 0.3 m
u(r) = 0.4/r - 1000r m/s
diameter d1 = 2 cm = 0.02 m
diameter d2 = 4 cm = 0.04 m
rotation = 500 rpm
power = 1 w
to find out
fluid viscosity
solution
we have given
u(r) = 0.4/r - 1000r m/s
du/dr = -0.4/r² + 1000
here r = 0.3 /2 = 0.01 m
du /dr = -0.4/(0.01)² + 1000
du/dr = 5000
and
so velocity is
force = viscosity ( 2π×r×L) du/dr
0.026 / 0.02 = viscosity ( 2π× 0.02×0.04) 5000
viscosity = 0.051725 N/m-s