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MaRussiya [10]
3 years ago
14

A tight knot can be easily opens by using a longer spanner. Give reasons

Physics
1 answer:
kobusy [5.1K]3 years ago
6 0

It is because the effort distance is greater than the load distance

Explanation:

As we know, Effort×effort distance = load × load distance

So when effort distance is increases,

The effort decreases

So when the spanner’s handle is long

A tight knot can easily be opened by less effrot

I hope it helped

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Rita places a 2.5 kg block on a frictionless inclined plane that is 30 degrees above horizontal. She applies a horizontal force,
vitfil [10]

Answer:

14.2

Explanation:

find horizontal force of the weight = 2.5kg x 9.8 Sin30 = 12.3 N

to prevent the sliding she needs to pull horizontally

Fh = 12.3 /Cos 30 =14.2N

7 0
3 years ago
A) Draw a pie chart that represents the two types of lung cancer. Show your working.
Sphinxa [80]

Answer:

<em>Please, check the image provided</em>

Explanation:

<u>Pie Charts</u>

They are graphic representations of quantitative results from experimental or theoretical experiences. Instead of showing a table, it's usually preferred to show a graph where the viewer can easily understand the relative relations between the parameters under study.

The chart pie is a circular shape divided into sectors whose areas are proportional to the proportions between each parameter and the total. Since the whole sector of a circle has 360°, each sector will be a proportion or ratio of that angle.

The outcome shown in the table gives us these statistics:

Small Cell Carcinoma : 15%

Non-Small Cell Carcinoma : 85%

Each category has the following angles in the chart pie

Small Cell Carcinoma : 15%*360°=54°

Non-Small Cell Carcinoma : 85%*360°=306°

The first category is shown in blue and the second in green. Please check the image below.

4 0
3 years ago
You are the captain of a pirate ship and wish to find out how strong a new first mate is at rowing treasure from shore to the sh
Kryger [21]
The formula that is usually used for the calculation of power is the product of force applied and the speed at which the action is done. That is,
                                     P = Fv
We let d be the distance covered and the equation for power would be,
                                     P = (500 N)(d/240 s)
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3 0
3 years ago
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Hope this helps have a good day.....

3 0
3 years ago
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katovenus [111]

Answer:

Sun, fireflies, glow worms ,Stars ,a lighter torch ,a kerosene Oil Lamp, burning candle, vapor light, a bulb

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3 years ago
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