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zzz [600]
3 years ago
12

Can someone please answer 5-7

Physics
1 answer:
Dimas [21]3 years ago
8 0
5) 1/2*0.06*50^2
= 75J
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(blank) is the thermal energy that flows from one substance to another when the substances differ in temperature
Oduvanchick [21]
The answer is heat I think
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3 years ago
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The bar graph shows the population of male and female deer in a forest, measured in 10-year intervals. According to the graph, w
saul85 [17]

Answer: option D. the ratio of the population of male deer is not constant.


Explanation:


The bar graph permits to compare the results for two different populations: male and female deer in a very easy visual way.


These features are remarkable:


  • The polulation of male deer (blue bars) decrease from 1961 to 1971, then increase in the next 10 year, decrease in the next decade, and increase for the next two decades. So, its trend is erratic, with ups and downs.

        This discards the option A, which states that the population of male deer increases each decade from 1961 to 2011.


  • The population of female deer (purple or brown bars) decreases every decade.

        This discards the option B. which states that when the polulation of male deer increases, the poluplation of female deer also increases.


  • The populations never are equal, hence this discards the option C.

  • Since, one popultion increases and decreases, while the other population only decreases, you conclude that the ratio of the population of male deer to female deer is not constant, which is the option D.
4 0
3 years ago
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What type of energy powers most household appliances
Alenkasestr [34]

Answer:

Electrical energy powers most household appliances.

5 0
2 years ago
Is erosion a constructive or destructive force and why?
Andrei [34K]
Destructive force
It’s a force that slowly wears away mountains and other features on earths surface, such as erosion.
5 0
3 years ago
Find the work done by a 75.0 kg person in climbing a 2.50 m flight of stairs at a constant speed.
Lubov Fominskaja [6]

Answer:

<em>1,839.375 Joules</em>

Explanation:

Work is said to be done is the force applied to an object cause the object to move through a distance.

Workdone = Force * Distance

Workdone = mass * acceleration due to gravity * distance

Given

Mass = 75.0kg

acceleration due to gravity = 9.81m/s²

distance = 2.50m

Substitute the given parameters into the formula:

Workdone = 75.0*9.81*2.50

Workdone = 1,839.375Joules

<em>Hence the workdone is 1,839.375 Joules</em>

6 0
3 years ago
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