Answer:
r = 4.24x10⁴ km.
Explanation:
To find the radius of such an orbit we need to use Kepler's third law:
<em>where T₁: is the orbital period of the geosynchronous Earth satellite = 1 d, T₂: is the orbital period of the moon = 0.07481 y, r₁: is the radius of such an orbit and r₂: is the orbital radius of the moon = 3.84x10⁵ km. </em>
From equation (1), r₁ is:
Therefore, the radius of such an orbit is 4.24x10⁴ km.
I hope it helps you!
Answer:
m=image distance÷object distance
Answer:
1.319 × 10³ m/s
Explanation:
The formula for speed of sound is ;
v= f*λ where
v= speed of sound
f= frequency of sound= 3.705 kHz = 3705 Hz
λ= wavelength of sound = 35.6 cm = 0.356 m
Applying the formula ;
v= f*λ
v= 3705 * 0.356
v=1318.98 m/s
v= 1.319 × 10³ m/s
Heat energy caused by friction is usually a waste product that results when energy is destroyed or dissappears.
Friction converts useful kinetic energy into thermal energy or heat. Friction gets a bad rap for turning useful energy into useless energy.