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larisa86 [58]
1 year ago
15

Which of the following statements is true? Radiation is the transfer of heat between objects which are not touching. An insulato

r speeds up the vibration of molecules and the transfer of heat. Heat is transfered in solids through conduction. All of the sun's heat is reflected by the Earth's atmosphere.
Chemistry
1 answer:
Licemer1 [7]1 year ago
3 0

Answer:

Radiation is the transfer of heat between objects which are not touching. I think

Explanation:

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A crow flies 100 meters east in 5 minutes. What is the crow’s velocity?​
torisob [31]

<em>Answer:</em>  20 m/min east

<em>Explanation:</em>  The speed is distance divided by time

distance between start-point and end-point = 100 meters

<em>time to cover the distan</em>ce  =  5 minutes

100 m ÷ 5 min = 20 m/min east

y<u>ou have to add east since velocity is the measure of speed and direction and your answer needs to include the direction</u>

3 0
2 years ago
Suppose that a certain fortunate person has a net worth of $77.0 billion ($). If her stock has a good year and gains $3.20 billi
marissa [1.9K]

Answer:

New net worth to three significant figures = $80.2 billion

Dollars are given to charity = $100,250,000

Explanation:

Net worth = $77.0 billion

stock Gains = $3.20 billion

New net worth = $77.0 billion + $3.20 billion = $80.20 billion

New net worth to three significant figures = $80.2 billion

One-eighth of a percent = (1/8 x 1) / 100 = 0.00125

Dollars are given to charity = 0.00125 X $80.2 billion = $100,250,000

Or

$80,200,000,000/100 = $802,000,000

3 0
3 years ago
Q5 what's the answer to A?
Snezhnost [94]
The answer is CH3CH2CH2CHO
8 0
3 years ago
How many grams are in 3 mol of KBr?
e-lub [12.9K]

Answer: 7

Explanation:

6 0
3 years ago
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From the graph of Density vs. Concentration, created in Graph 1, what was the relationship between the concentration of the suga
USPshnik [31]

The graph is not given in the question, so, the required graph is attached below:

Answer:

According to the graph, the relationship between the density of the sugar solution and the concentration of the sugar solution is directly proportional to each other as they both are increasing exponentially.

The graph shows that, the density of sugar solution will increase with the increase in concentration of sugar in the solution.

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3 years ago
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