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Kamila [148]
3 years ago
10

A snail crawls 300 cm in 1 hour. Calculate the snail's speed in each of the following units. A) cm/h B) cm/min C) m/h

Physics
1 answer:
Crazy boy [7]3 years ago
7 0
A) 300cm/h
B)1 hr=60 min
300/60=5
5cm/min
C)1m=100cm
300/100=3
3m/h
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The focal length of the lens is 25cm

given:

power,p=4 diopters

what is focal length?

Focal length is the distance between the point of convergence of your lens and the sensor or film recording the image.

what is diopter?

The unit of optical power of lens is called diopter.It is the optical power of the lens.

we know,

p=1/f

where,

p= power

f= focal length

f=1/p

f=1/4

=0.25m

=25cm

Thus,the focal length of the lens is 25cm

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Answer:

Explanation:

Given

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F=-\left ( 2ax-\frac{2b}{x^3}\right )

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D. Advances in technology were needed to gather more evidence.

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New technologies had to be developed to ascertain Wegener's claims.

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His theory needed more scientific backing also.

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