Express the product of 3.2 and 5.00 using the correct number of significant digits.

Answers

Answer 1

Answer:

Answer: $1.6* 10^1$

Explanation:

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Rules for significant figures:

Digits from 1 to 9 are always significant and have infinite number of significant figures.

All non-zero numbers are always significant.

All zero’s between integers are always significant.

All zero’s preceding the first integers are never significant.

All zero’s after the decimal point are always significant.

The rule apply for the multiplication and division is :

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

Thus for product of $3.2* 5.00=16$

In this problem, 3.2 has 2 significant figures and 5.00 has 3 significant digits thus product will have the least number of significant figures which is 2. So, the answer will be in 2 significant figures.

Therefore, the answer is $1.6* 10^1$

Answer 2

Answer: So 3.2 × 5 = 16 hope this helps

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A container of hydrogen at 172 kpa was decreased to 85.0 kpa producing a new volume of 765 mL. What was the original volume

Answers

Answer:

$\boxed{\text{378 mL}}$

Explanation:

The temperature and amount of gas are constant, so we can use Boyle’s Law.

$p_(1)V_(1) = p_(2)V_(2)$

Data:

$\begin{array}{rclrcl}p_(1)& =& \text{172 kPa}\qquad & V_(1) &= & \text{?} \np_(2)& =& \text{85.0 kPa}\qquad & V_(2) &= & \text{765 mL}\n\end{array}$

Calculations:

$\begin{array}{rcl}172V_(1) & =& 85.0 * 765\n172V_(1) & = & 65 025\nV_(1) & = &\textbf{378 mL}\n\end{array}\n\text{The original volume was } \boxed{\textbf{378 mL}}$

if a star is 300 light years from earth how long does it take light from the star to reach earth/12327655/b8099c19?utm_source=registration

Answers

It would take 300 light years to reach Earth.
I hope this helps !

How would a sandblasted rock differ from a rock that hasn't been sandblasted?

Answers

A non-sandblasted rock could be rough or smooth depending on how it was formed.

A sandblasted rock should be much smoother, since the sand blasts away any rough edges. It will, however, be slightly smaller due to losing those edges.

A sandblasted rock differs from a non-sandblasted rock in various aspects, including a change in texture and color of the rock's surface.

Sandblasting is a process in which a high-pressure stream of sand or other abrasive material is used to remove material from the surface of an object.

The most noticeable difference between a sandblasted rock and one that hasn't been sandblasted is the texture of the surface. A sandblasted rock will typically have a rough, pitted surface, while an unsandblasted rock will have a smoother surface.

Sandblasting can also change the color of a rock. If the rock has a layer of surface material that is a different color than the underlying rock, sandblasting can remove the surface layer and expose the underlying rock.

Therefore, a sandblasted rock would differ from a rock that hasn't been sandblasted in several ways such as change in texture and color of a rock's surface, creating a rough, pitted texture and exposing the underlying rock.

Learn more about Sandblasting here:

brainly.com/question/15906567

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Give an example on how to make an acrostic poem using the word kinetic

Answers

Katniss
Is
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A sentence for physical weathering

Answers

Physical weathering can lead to the beginning of the erosion process.

physical weathering is a process of decay disintgration and decomposition brought about by environmental changes like running water moving ice wind etc

On Sunday NASA's SpaceX launched 4 astronauts into space for a mission lasting 5 months. They named their spacecraft RESILIENCE.In 4-6 sentences explain what the word RESILIENCE means to you. Also, why do you think they named their spacecraft that? Please respond to this prompt in your own words, there is no need to google!

!!DO NOT GOOGLE IT!!

Answers

Answer: I think they named it RESILIENCE to point out that it should be resilient to harsh conditions and that it would be able to push through with little damage. when I hear the word resilience I think of strong able to push through. I think of myself of resilient because _________________. Naming the space craft RESILIENCE is smart because the astronauts will know they are safe when they launch.

Explanation:

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