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Vaselesa [24]
3 years ago
15

When is the earth said to be at perihelion

Physics
2 answers:
cluponka [151]3 years ago
6 0
Perihelion is a place ... It's the point in Earth's orbit
where the Earth is closest to the sun.

We reach that point every year some time during
the first few days of January.
Llana [10]3 years ago
5 0
When the earth is closest to the sun it is said to be in perihelion position.
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2 years ago
Could I please get some help on this question I don’t understand .
Oksana_A [137]

Answer:

12.5 m/s

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 0 m/s

Height (h) = 8 m

Final velocity (v) at 8 m above the lowest point =?

NOTE: Acceleration due to gravity (g) = 9.8 m/s²

The velocity of the roller coaster at 8 m above the lowest point can be obtained as follow:

v² = u² + 2gh

v² = 0² + (2 × 9.8 × 8)

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v = √156.8

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3 years ago
What is the name of the force that opposes, or the opposite of gravity ???!!
Novosadov [1.4K]

Answer:

Tension.

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4 0
3 years ago
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A 1500 kg truck travelling north at 60 km/hr collides with a 1200 kg car moving east at 15km/hr. If the two cars remain locked t
Alenkinab [10]

Answer:

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From the question,

Given: m = 1500 kg, u = 60j, m' = 1200 kg, u' = 15i

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V = (90000j+18000i)/2700

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