Answer:
the magnitude of the work done by the two blocks is the same.
Explanation:
The work done by block a on block b is given by:
where Fa is the force exerted by block a on block b, and d is the distance they cover.
The work done by block b on block a is given by:
where Fb is the force exerted by block b on block a, and d is still the distance they cover.
For Newton's third law, the force exerted by block a on block b is equal to the force exerted by block b on block a, therefore
and so
Answer:
h = 17 10⁶ m from surface of mars
Explanation:
For this exercise we will use Newton's second law where force is the force of universal gravitation
F = m a
The acceleration is centripetal
a = v² / r
G m M / r² = m v² / r
The speed module is constant, so we use the uniform motion ratio
v = d / t
Where the distance is the length of the circumference and the time is the period of the orbit
d = 2π r
v = 2π r / T
We replace
G M / r² = (4π² r² / T) / r
r³ = G M T² / 4π²
Let's reduce time to SI units
T = 24.66 h (3600 s / 1 h) = 88776 s
Let's calculate
r = ∛ 6.67 10⁻¹¹ 6.42 10²³ 88776² / 4π²
r = ∛ 8.5485 10²¹ m
r = 2,045 10⁶ m
This is the distance from the center of the planet, The height, which is the distance from the surface is
r = + h
h = r -
h = 20.45 10 6 - 3.39 106
h = 17 10⁶ m
Answer:
145.8 cm³ of paint
Explanation:
d₁ = Smaller diameter paintball = 5 cm
d₂ = Larger diameter paintball = 9 cm
V₂ = Volume of larger diameter paintball
Volume of smaller diameter paintball
Similarly
Dividing the above two equations, we get
∴ The larger one hold 163.296 cm³ of paint