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Gemiola [76]
3 years ago
10

Cassie lives two miles away from school. Which mode of transport could benefit her health? 

Physics
2 answers:
lord [1]3 years ago
4 0
B.) Riding a bicycle to school.
Umnica [9.8K]3 years ago
4 0
I would say B. Riding a bicycle to school
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2. Which part of a refracting telescope forms the image?
Bezzdna [24]

<em> In a refracting telescope </em><u><em>convex lens</em></u><em> forms the image. </em>

<u>Answer:</u> <em>c. Convex mirror</em>

<u>Explanation:</u>

Telescope is an instrument used for magnification of distant objects. The convex lenses objective and eyepiece are the two parts of a refracting telescope.  

Objective has a greater focal length when compared with the eyepiece. Image of a distant object is formed at the second focal point of the objective. This image is magnified by the eyepiece.  

The objective and eyepiece lenses can only produce an inverted image since they both are convex lenses. The function of producing a final erect image is performed by a pair of inverting lenses.

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2 years ago
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3 years ago
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A close coiled helical spring of round steel wire 10 mm diameter having 10 complete turns with a mean radius of 60 mm is subject
kow [346]

Answer:

The deflection of the spring is 34.56 mm.

Explanation:

Given that,

Diameter = 10 mm

Number of turns = 10

Radius_{mean} = 60\ mm

Diameter_{mean} = 120\ mm

Load = 200 N

We need to calculate the deflection

Using formula of deflection

\delta=\dfrac{8pD^3n}{Cd^4}

Put the value into the formula

\delta=\dfrac{8\times200\times(120)^3\times10}{80\times10^{3}\times10^4}

\delta =34.56\ mm

Hence, The deflection of the spring is 34.56 mm.

4 0
3 years ago
As a substance melts, heat energy is used to break the connections between molecules, and temperature __________ until all melti
mario62 [17]
Temperature stays the same
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2 years ago
Which uses motion of water in nature to produce electricity?
Zinaida [17]

Answer: D. Hydroelectric power

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3 years ago
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