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lesya692 [45]
3 years ago
10

Can someone answer this question quickly??

Physics
1 answer:
masya89 [10]3 years ago
7 0

Answer:

Lithium and Sodium

Explanation:

Lithium and Sodium is in the same group 1A

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Two balls, each with a mass of 0.890 kg, exert a gravitational force of 8.06 × 10−11 n on each other. how far apart are the ball
Bond [772]
This problem involves Newton's universal law of gravitation and the equation to follow would be.

F = GM₁M₂/r²  

Given: M₁ = 0.890 Kg;  M₂ = 0.890 Kg;  F = 8.06 x 10⁻¹¹ N; G = 6.673 X 10⁻¹¹ N m²/Kg²

Solving for distance r = ?

r = √GM₁M₂/F

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3 years ago
A 3600 kg rocket traveling at 2900 m/s is moving freely through space on a journey to the moon. The ground controllers find that
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Answer:

m=417.24 kg

Explanation:  

Given Data

Initial mass of rocket  M = 3600 Kg

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first to find Initial speed with angle given

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Vi=vi×tanΘ...............tan angle

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Vi=563.7 m/s

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m = (M ×vi ×tanΘ)/( vg + vi tanΘ)

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m = (3600 kg ×563.7m/s)/(4300 m/s + 563.7 m/s)

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A copper sphere was moving at 40 m/s when it hit another object. This caused all of the KE to be converted into thermal energy f
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We need to identify the initial data of the problem.

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The most important data given is the fact that when the shock occurs kinetic energy is transformed into thermal energy, therefore it will have to be:

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6. Rock Ais thrown horizontally off a cliff with a velocity of 15 m/s. The rock lands 75m from
Harman [31]

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5  seconds

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