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3 years ago

Convert 35.0 m/s to cm/min

Chemistry

1 answer:

swat323 years ago

3 0

35 m/s = 210000 cm/min
35*600=210000

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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

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

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3 years ago

A cube has a mass of 42 grams and a volume of 15 cubic centimeters. What is it’s density?

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Answer:

2.8g/cm³

Explanation:

Given parameters:

Mass of cube = 42g

Volume of cube = 15cm³

Unknown:

Density of the cube = ?

Solution:

Density is defined as the mass per unit volume of a substance. It is mathematically expressed as:

Density = $\frac{mass}{volume}$

So;

Density = $\frac{42}{15}$ = 2.8g/cm³

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3 years ago

How many moles of aluminum oxide are produced when 6 moles of oxygen gas react?

siniylev [52]

Answer:

4 moles of aluminum and 6 moles of oxygen are produced

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How does the ozone layer affect life on Earth?

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<span>d. filters out harmful ultraviolet radiation</span>

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The energy of the universe is constant. That what mentioned by the first law of thermodynamics,

Goryan [66]

Answer:

No, ΔE does not always equal zero because it refers to the systems internal energy, which is affected by heat and work

Explanation:

According to the first law of thermodynamics, energy is neither created nor destroyed. This implies that the total energy of a system is always a constant.

So, according to the first law of thermodynamics we have that ΔE = q + w. This means that the value of ΔE depends on q (heat) and w(work). Hence ΔE is not always zero since it depends on the respective values of q and w.

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