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earnstyle [38]
3 years ago
5

True or false: potential energy increases as like charges get closer to one another

Chemistry
1 answer:
Veronika [31]3 years ago
3 0
True, is the correct answer.
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In nature amino acids exist in what type of conformation?
liberstina [14]

Answer:

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Explanation:

7 0
2 years ago
A car traveling at a constant speed travels 175 miles in four hours. How many minutes will it take for the car to travel 1000 fe
elena-14-01-66 [18.8K]

It takes 0.26 minutes to travel 1000 feet

<u>Solution:</u>

Given that car traveling at a constant speed travels 175 miles in four hours

Distance = 175 miles

Time taken = 4 hours

Convert the units to feet and minute

Given that,

1 mile = 5280 feet

175 miles = 5280 x 175 feet = 918720 feet

Also we know that,

1 hour = 60 minutes

4 hours = 60 x 4 minutes = 240 minutes

Thus, we got,

Distance = 918720 feet

Time taken = 240 minutes

<em><u>Find the speed of car</u></em>

<em><u>Speed is given by formula:</u></em>

speed = \frac{distance}{time}

speed = \frac{918720}{240} = 3828

Thus speed of car is 3828 feet per minute

<em><u>How many minutes will it take for the car to travel 1000 feet?</u></em>

Let "x" be the minutes needed for 1000 feet

speed of car is 3828 feet per minute

1 minute = 3828 feet

x minute = 1000 feet

This forms a proportion. We can solve by cross multiplying

x \times 3828 = 1000 \times 1\\\\x = \frac{1000}{3828}\\\\x = 0.26

Thus it takes 0.26 minutes to travel 1000 feet

7 0
3 years ago
Which of the following statements best describes why a chemical change is different from a physical change.
Butoxors [25]

Answer:

C) Chemical changes involve formation of a new substance while physical change only impacts appearance or form.

Explanation:

The obvious difference between a chemical change and physical change is that in a chemical change new substances are produced while in a physical change, the form of the compounds are altered.

  • Most phase changes are products of physical changes. Such changes are easily reversible.
  • In a chemical change, a new kind of matter is formed. It is accompanied by energy changes.
  • The process is not easily reversible.
3 0
3 years ago
Which type of power can be used to reduce the production of carbon dioxide?
klasskru [66]

A. solar. Hope it helped!


8 0
3 years ago
Read 2 more answers
Salt seems to dissappear when it is poured into water. Use mixture, solution, and dissolve to explain what happens.
fgiga [73]
The salt desolves into the water which forms a solution which is called a mixture.
8 0
3 years ago
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