predict how the moon would appear yo an observer in space during its revolution. would phases be observable? explain.

1 answer:

5 0

Yes, the phases should be visible. The phases are,

New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning cresent, repeat

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Does anyone know how to solve this?

kompoz [17]

Answer:

110 m

Explanation:

Draw a free body diagram of the car. The car has three forces acting on it: normal force up, weight down, and friction to the left.

Sum of the forces in the y direction:

∑F = ma

N − mg = 0

N = mg

Sum of the forces in the x direction:

∑F = ma

-F = ma

-Nμ = ma

Substitute:

-mgμ = ma

-gμ = a

Given μ = 0.40:

a = -(9.8 m/s²) (0.40)

a = -3.92 m/s²

Given that v₀ = 30 m/s and v = 0 m/s:

v² = v₀² + 2aΔx

(0 m/s)² = (30 m/s)² + 2 (-3.9s m/s²) Δx

Δx ≈ 110 m

8 0

3 years ago

Read 2 more answers

A train car of mass 3,825 kg sits at rest on the track. A second car of mass 5,169 kg moving at 6 m/s slams into it and they sti

Anni [7]

The final combined speed of the two trains is 3.4 m/s

Explanation:

We can solve this problem by using the law of conservation of momentum: in absence of external forces, the total momentum of the two trains must be conserved before and after the collision.

Therefore we can write:

$p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v$