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3 years ago

Easy yes or no question! Do phytoplankton turn carbon dioxide to oxygen?

Physics

2 answers:

katen-ka-za [31]3 years ago

5 0

Yes they do they use photosynthesis

Marrrta [24]3 years ago

3 0

Yes, they do :D
They use photosynthesis, like plants.

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Electricity flows from what to what

DerKrebs [107]

Electricity flows from positive to negative

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2 years ago

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Wilma can mow a lawn in 80 minutes. Rocky can mow the same lawn in 120 minutes. Construct an equation that would allow you to de

xeze [42]

Answer:

$t = 96 minutes$

Explanation:

Time to mow 1 lawn by Wilma is 80 minutes

so work done in 1 minute by Wilma is given as

$W_1 = \frac{1}{80}$

Similarly Rocky mow same lawn in 120 minute

so work done in 1 minute by Rocky is given as

$W_2 = \frac{1}{120}$

now we know that they both worked by "t" time

so total work performed by them

$W = \frac{t}{80} + \frac{t}{120}$

they both mow 2 lawns then it is given as

$2 = (\frac{1}{80} + \frac{1}{120})t$

$t = 96 minutes$

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3 years ago

Maureen takes notes in class. Wave Interactions

Monica [59]

A. I .................

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3 years ago

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What type of image can a convex mirror produce?

user100 [1]

It must be a virtual image, because this is the only kind of image it can produce.

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3 years ago

24. An elevator is moving vertically up with an acceleration a. The force exerted on the floor by a passenger of mass m is

Wewaii [24]

Given :-

An elevator is moving vertically up with an acceleration a.

To Find :-

The force exerted on the floor by a passenger of mass m .

Solution :-

As the man is in a accelerated frame that is non inertial frame , we would have to think of a pseudo force .

The direction of this force is opposite to the direction of acceleration the frame and its magnitude is equal to the product of mass of the concerned body with the acceleration of the frame .

For the FBD refer to the attachment . From that ,

$\implies Weight_{apparent}= mg + ma$

Hence option d is correct choice .

I hope this helps .

3 0

3 years ago