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ollegr [7]
3 years ago
14

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. The best type of gr

aph to illustrate the change in air temperature over a period of time would be a _________ graph. a. circle b. line c. bar d. all of these Please select the best answer from the choices provided A B C D
Physics
2 answers:
lara31 [8.8K]3 years ago
7 0

Answer:

B line graph

Explanation:

sorry if I am wrong

Malachi1134
2 years ago
nah nah your right
Nataly_w [17]3 years ago
7 0

Answer:

b

Explanation:

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An object is placed in front of a diverging lens, such that the object-to-image distance is 71 cm.
Pachacha [2.7K]

Explanation:

Given that,

Object-to-image distance d= 71 cm

Image distance = 26 cm

We need to calculate the object distance

u -v= d

u=71+26=97\ cm

We need to calculate the focal length

Using formula of lens

\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}

put the value into the formula

\dfrac{1}{f}=\dfrac{1}{-26}+\dfrac{1}{97}

\dfrac{1}{f}=-\dfrac{71}{2522}

f=-35.52\ cm

The focal length of the lens is 35.52.

(B). Given that,

Object distance = 95 cm

Focal length = 29 cm

We need to calculate the distance of the image

Using formula of lens

\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}

Put the value in to the formula

\dfrac{1}{-29}=\dfrac{1}{v}-\dfrac{1}{95}

\dfrac{1}{v}=\dfrac{1}{-29}-\dfrac{1}{95}

\dfrac{1}{v}=-\dfrac{124}{2755}

v=-22.21\ cm

We need to calculate the magnification

Using formula of magnification

m=\dfrac{v}{u}

m=\dfrac{22.21}{95}

m=0.233

The magnification is 0.233.

The image is virtual.

Hence, This is the required solution.

4 0
3 years ago
An environmental scientist gives a demonstration on composting. Roger is in the audience. He wonders how composting discarded fo
Wittaler [7]

Answer:

A

Explanation:

I just did the test

4 0
3 years ago
Average velocity is different than average speed because calculating average velocity involves a)Distance b)Time c)Motion d)Disp
likoan [24]

Answer:

The answer is D.

Explanation:

Average speed involve just distance and time but average velocity includes displacement and time.

(Correct me if I am wrong)

6 0
4 years ago
A car is traveling in a straight line at a constant speed. The car's engine is exerting a constant force on the car. Explain why
kherson [118]

Answer:

because its not going down a long hill instead its going on a leveled street

5 0
3 years ago
Average velocity is different than average speed because calculating average velocity involves
borishaifa [10]

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average velocity include total displacement whereas average speed include total distance

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