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3 years ago

12

How do scientists classify small objects in the solar system?

1 answer:

LiRa [457]3 years ago

4 0

*size
*shape
*temperature
*compostion

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Please solve this (step by step)

Inga [223]

now you justhave to solve the last numbers because...Iam sooo Lazy right now

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3 years ago

James weighs 67 pounds on Earth. He has a mass of 30 kilograms. Which of the following is true?

morpeh [17]

Answer:

I think its B. James would have a smaller mass on the Moon than he does on Earth.

sorry if i did it wrong

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3 years ago

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If the work put into a lever is 930 joules and the work accomplished is 870 joules, the efficiency of the lever is _____.

77julia77 [94]

♥ C) 94%
♥ If the work put into a lever is 930 joules and the work accomplished is 870 joules, the efficiency of the lever is 94%.
♥ <span>870/930=93.5
</span>♥ And rounded you get 94.

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3 years ago

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At the equator, the radius of the Earth is approximately 6370 km. A plane flies at a very low altitude at a constant speed of v

Anna007 [38]

To solve this problem we will apply the concepts related to the kinematic equations of linear motion. For this purpose we will define the speed as the distance traveled in a given period of time. Here the distance is equivalent to the orbit traveled around the earth, that is, a circle. Approaching the height of the aircraft with the radius of the earth, we will have the following data,

$R= 6370*10^3 m$

$v = 219m/s$

$a = 17m/s^2$

The circumference of the earth would be

$\phi = 2\pi R$

Velocity is defined as,

$v = \frac{x}{t}$

$t = \frac{x}{v}$

Here $x = \phi$ , then

$t = \frac{\phi}{v} = \frac{2\pi (6370*10^3)}{219}$

$t = 1.82*10^5s$

Therefore will take $1.82*10^5$ s or 506 hours, 19 minutes, 17 seconds

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3 years ago

While spending the weekend in your cabin, you burn wood in your pot-bellied stove to heat a kettle of water for tea.

Olegator [25]

Answer: 1 = Heat

2=gas

3=it gets hot enough to boil because the metal conducts the heat into the water to heat it up and eventually boil.

Explanation: its common sense

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3 years ago