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3 years ago

8

You have learned in biology class that a substance called chlorophyll makes leaves green. You guess that perhaps leaves change c

olor because they do not produce chlorophyll when temperatures get colder. What have you done?

2 answers:

Shkiper50 [21]3 years ago

7 0

You have formed a hypothesis.

atroni [7]3 years ago

4 0

you have formed what you call a hypothesis, is kinda like a theory.

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Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer sec

GaryK [48]

Mary and her younger brother Alex decide to ride the carousel at the State Fair, Mary's and Alex's angular speed M and tangential speed vM is mathematically given as

Mary's and Alex's angular speed=1.43

Tangential speed mary=3.22 m/s

Tangential speed alex =2.260m/s

<h3>What is Mary's and Alex's angular speed M and tangential speed vM?</h3>

Generally, the equation for angular speed is mathematically given as

$w=2\pi /T\\\\Therefore\\\\w=2\pi/3.9$

w = 1.61 rev/see 3.9

Centripetal acc mary = v^2/r

Centripetal acc mary = w^2r

Centripetal acc mary = w^2x 2m

Centripetal acc. of Alex = w²x L.u

Therefore

$\frac{(ac) mary }{(ac) plex}= 1.43$

Hence

tang. speed V=Wr

tang. speed of mary = 1.61x2 = 3.22 m/s

tang. speed of Alex: 1.61X1·4 =2.260m/s

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2 years ago

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mart [117]

G g j inj g f d t u u i

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552000 in scientific notation

LUCKY_DIMON [66]

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_______ measures an object's change in position per unit time.

Deffense [45]

I believe your answer should be C. Speed.

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Which of the following is a common feature among the four inner planets?

denpristay [2]

<span>rocky surface

(outer plants are made of gas)</span>

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