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Anastaziya [24]
4 years ago
7

Which of the following best defines force

Physics
1 answer:
nataly862011 [7]4 years ago
8 0

Answer:

force is a push or a pull

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A gardener uses 2700 J of work to push a wheelbarrow for 60 seconds. How much power does she use?
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I think 90 w I am not sure but I think it is right

I hope it is helpful for u

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3 years ago
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Glass absorbs ultraviolet (UV) rays from the Sun. Would a fraction of the incident UV light be reflected from the air/glass boun
fiasKO [112]

Answer:

Yes

Explanation:

Any transparent surface in practical is neither a perfect absorber of electromagnetic waves neither a perfect reflector. Generally all the transparent surfaces reflect some amount of irradiation and the other parts are absorbed and transmitted.

<u>That is given by as relation:</u>

\alpha+\rho+\tau=1

where:

\alpha= absorptivity which is defined as the ratio of the absorbed radiation to the total irradiation

\rho= reflectivity is defined as the ratio of reflected radiation to the total irradiation

\tau= transmittivity is defined as the ratio of total transmitted radiation to the total irradiation

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4 years ago
What is the average speed of a cheetah that runs 88m in 5 seconds?
pishuonlain [190]

17.6 m/s


is the answer



v=displacent/time



Hope i helped <333



5 0
4 years ago
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Who’s going faster in the attached image?
ioda

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Art

Explanation:

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Two people are talking through a thick wall, 3 meters high, between them. This fact can best be explained by the phenomenon of A
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