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3 years ago

15

_______ are an especially good indicator of climate change because scientists can find clues about ancient organisms and their e

nvironments.

1 answer:

Elis [28]3 years ago

4 0

Fossils if I am not mistaken

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If the force of a golf club on a golf ball is 200 N forward, what will the force of the ball on the club be? A. 200 N forward B.

Korolek [52]

The ball should put 200 N of force towards the golfer.

Newton's Third Law is every action has an equal and opposite reaction.

It's the ball exerting 200 N of force towards the club as well, but the opposite reaction is that it flies away.

8 0

4 years ago

Read 2 more answers

Es muy urgente porfavor! ( solo me teneis que ayudar a sacar el apartado d,e y f porfavor!

Luba_88 [7]

I don’t know español

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3 years ago

Does moon have a dense atmosphere

nata0808 [166]

Answer:

No

Explanation:

Moon does not have any atmosphere.

Please mark as brainliest

3 0

3 years ago

A force of 250 N is applied to a hydraulic jack piston that is 0.02 m in diameter. If the piston that supports the load has a di

Vikentia [17]

Answer:

option B

Explanation:

given,

Force exerted by the hydraulic jack piston = F₁ = 250 N

diameter of piston, d₁ = 0.02 m

r₁ = 0.01 m

diameter of second piston, d₂ = 0.15 m

r₂ = 0.075 m

mass of the jack to lift = ?

now,

$\dfrac{F_1}{A_1} =\dfrac{F_2}{A_2}$

$\dfrac{250}{\pi r_1^2} =\dfrac{F_2}{\pi r_2^2}$

$\dfrac{250}{0.01^2} =\dfrac{F_2}{0.075^2}$

$F_2= \dfrac{250}{0.01^2}\times {0.075^2}$

F₂ = 14062.5 N

F = m g

$m = \dfrac{F}{g}$

$m = \dfrac{14062.5}{9.8}$

m = 1435 Kg

hence, the correct answer is option B

5 0

3 years ago

Which items or activities should a pregnant woman avoid to maintain her health and the health of her fetus? Check all that apply

Fynjy0 [20]

Answer:

Alcohol and drugs are a no no. you should put the answers in so people can answer correctly.

6 0

3 years ago