Answer: Height should be 44.1 m.
Explanation:
Pressure exerted by stationary water stored at a height is,
P = ρgh
4.41 × 
= 1000× 10× h
solving we get,
h = 44.1 m
For each revolution, the satellite covers the circumference
of its orbit.
The circumference of a circle is (pi) x (diameter).
Since the satellite is 22,500 miles from the center, that number
is the radius of the circle. The diameter is 45,000 miles.
The circumference is (pi) x (45,000 miles) = 141,372 miles
The satellite's average speed is 141,372 miles per day, or
(141,372 / 24) = 5,890 miles per hour
relative to the center of the Earth.
Answer:
Explanation:
we know that for ideal gag we have
pV =nRT
Since volume, gas constant R and T are constant, so we have
![\frac{p}{n] = constant](https://tex.z-dn.net/?f=%5Cfrac%7Bp%7D%7Bn%5D%20%20%3D%20constant)
n = 0.289 mole
hence mass removed
Three quarters remain un-decayed
Answer:
4.7 × 10⁵J
Explanation:
E = I * a * t
80% = 0.80
25cm = 0.25m
52cm = 0.52m
0.90h = 3240s
E = (0.80)(1400)(0.25 * 0.52)(3240)
= 4.7 * 10⁵J
