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adelina 88 [10]
3 years ago
14

Two stars that are bond together by gravity and orbit a common center of mass are known as

Physics
1 answer:
Whitepunk [10]3 years ago
8 0
D... Binary stars, I think
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A student pulls a cart across a horizontal floor by exerting a force of 50 newton at an angle 30
ivann1987 [24]
What's the question to this
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4 years ago
I'm thinking A?
Luba_88 [7]

Hey girl

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3 years ago
Help please explain!!!
zalisa [80]
Newton's first law of motion. An object in motion tends to stay in motion. Since there is no friction in space to slow it down it just keeps going
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3 years ago
A 200g of iron at 120 degrees and a 150 g piece of copper at -50 degrees are dropped into an insulated beaker containing 300 g o
kodGreya [7K]

Answer:

T = 15.03°C

Explanation:

given data:

copper specific heat = Sc = 0.385 J/g °C

iron specific iron = Si = 0.450 J/g °C

specific heat of ethanol = Se = 2.46 J/g °C

net heat loss is equal to zero

(m*S*\Delta T)_{copper} +(m*S*\Delta T)_ {iron} +(m*S*\Delta T)_ {ethanol} = 0

150*0.385 *( T - (-50)) + 200*0.450*(T - 120) + 300*2.46 * (T -20) = 0

57.75( T - (-50)) + 0.90(T - 120) +738(T -20) = 0

57.75T + 2887.5 + 0.90T - 108 + 738T - 14760 = 0

57.75T + 0.90T+738T = - 2887.5 + 108+14760

796.65T= 11980.5

T = 15.03°C

4 0
3 years ago
Is freezing outside on a cold day conduction convection or radiation?
harina [27]
<span>Conduction is the process of freezing outside on a cold day. Conduction is usually the process of transfer of heat that is temperature from one body to another body which the difference in their heat energy. This transfer of energy which makes it freeze is also considered as conduction.</span>
7 0
4 years ago
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