Answer:
7500 m/s
Explanation:
Centripetal acceleration = gravity
v² / r = GM / r²
v = √(GM / r)
Given:
G = 6.67×10⁻¹¹ m³/kg/s²
M = 5.98×10²⁴ kg
r = 6.8×10⁵ + 6.357×10⁶ = 7.037×10⁶ m
v = √(6.67×10⁻¹¹ (5.98×10²⁴) / (7.037×10⁶))
v = 7500
The orbital velocity is 7500 m/s.
Jupiter is composed almost entirely of gases and liquids, mostly hydrogen and helium.
Answer:
w = 1.766 Joule
Explanation:
Work = Force × Distance
In this case the Work done is stored in body as Gravitational potential energy, so , W = P. E. = mgh
Here m = 0.400 kg ( unit not given in the question if in other unit may be converted to Kg), g = 9.81 m/s² and h= 0.450 m
w = 0.400 kg × 9.81 m/s² × 0.450 m
w = 1.7658 kg m²/s² = 1.766 Joule or (Nm)
Hmm that's a tuff one let me think
Answer:
220,500 Joules
Explanation:
PE = (75 kg) x (9.8 ) x (300 m)
PE = (735) x (300)
PE = 220,500 Joules