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3 years ago

The metric unit of force is the _____. A.newton B.pound C.kilogram D.watt

Physics

2 answers:

noname [10]3 years ago

6 0

Answer:

Option A is the correct answer.

Explanation:

Force = Mass x acceleration

Unit of force = Unit of mass x Unit of acceleration = kg x m/s²

kg m/s² is also called as Newton (N)

Option A is the correct answer.

hammer [34]3 years ago

3 0

Force = mass × acceleration = kg × m/s^2 = Newton

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A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is 4.4. What is the m

patriot [66]

Answer:

$m = \frac{-4.4}{7.4}$

Explanation:

magnification is the ratio of distance of image to distance of object

i.e. $m = -\frac{d_i}{d_o}$

$d_i = -4.4 d_o$

As per the lens equation,

$\frac{1}{d_o} + \frac{1}{d_i} = \frac{1}{f}$

We will calculate the focal length of the mirror

$\frac{1}{yd_o} + \frac{1}{-4.4d_o} = \frac{1}{f} \\\frac{4.4 -1}{4.4} \frac{1}{d_o} = \frac{1}{f}\\f = \frac{4.4}{3.4} d_o$

Now for convex mirror only the sign will change

Thus, focal length would be equal to

$f = - \frac{4.4}{3.4} d_o$

Plugging this value into lens equation, we get

$\frac{1}{d_o} + \frac{1}{d_i} = \frac{1}{f} \\\frac{1}{d_o} + \frac{1}{d_i} = \frac{-3.4}{4.4} \frac{1}{d_o} \\\frac{7.4}{4.4} \frac{1}{d_o} = \frac{1}{d_i}\\\frac{d_i}{d_o} = \frac{4.4}{7.4} \\m =- \frac{d_i}{d_o} \\\\m = - \frac{4.4}{7.4}$

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3 years ago

What is a prokaryote cell/ eukaryote cell?

Wewaii [24]

A prokaryote is a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

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3 years ago

Michelle walked 217 meters in 2 minutes ,55 seconds what is her speed

anyanavicka [17]

Explanation:

55×60=3300

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3300+120=3420

speed=distance/time

speed=3420/217

x=15.6ms^-1

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2 years ago

Forces of 2 newtons and 3 newtons are acting on an object as shown in the drawing below. Calculate the resultant force in newton

Kipish [7]

Answer:

Hey mate

Your answer will be 5 N Upwards. 

I will explain this to you.

In the attachment we can see that there are two forces acting on the object from the same side. And we know that when force acts from the same direction. Then the total force

=> sum of all the forces in that particular direction.

I hope you got it :)

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Please help! you are amazing! brainliest!

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I think it’s a nebula i hope it’s right

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