How do I work out the percentage??

Answers

Answer 1

Answer: percentage for which columns btw if its something as easy as percentage for 4/5... you divid 4/5= .80 then.... .80*100= 80%

Answer 2

Answer: You just divide the percenage by the girst box and there is your answer

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How do air sacs of birds help make body lighter

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They lower the average density of their body; because of the air it feels like a slight decrease in the weight.

First to answer will be the brainliest i need the answer ASAP

Answers

kinetic energy because the bird is in motion

Kinetic Energy because the bird is in motion.

What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)

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Answer: 3m/s^2

Explanation:

Given that:

Acceleration of object = ?

Force = 9 N

Mass of object = 3 kg

Since force is the product of the mass of an object and the acceleration by which it moves i.e Force = mass x acceleration

9N = 3kg x acceleration

Acceleration = 9N/3kg

Acceleration = 3m/s^2 (3 metres per second square)

Thus, an acceleration of 3m/s^2 is produced.

How high has a 45 g golf ball been driven if it has a potential energy of 2.06 J?

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Here, U = mgh

We have: m = 45 g = 0.045 Kg
U = 2.06 J, g = 9.8 m/s², h = ?

Substitute the values in the formula:
2.06 = 0.045 × 9.8 × h
2.06 = 0.441 × h
h = 2.06 / 0.441
h = 4.67 m

In short, your final answer would be 4.67 meters

Hope this helps!

PE=mgh
2.06 J = 2.06 kg·m²/s² = (0.045 kg)·(9.8 m/s²)·h
where h is the height the ball has reached
Solve for h:
h = 2.06/(0.045·9.8) = 4.67 to the nearest hundredth
h = 4.67 m

Could someone please explain what makes up the electromagnetic spectrum? Thank you.

Answers

These types include gamma rays, x-rays, ultraviolet, infrared, microwaves and radio waves. Together with visible light, all these types of radiation make up what we call the electromagnetic spectrum - the complete spectrum of radiation.

Radio waves, microwaves, infrared waves, visible light, ultraviolet, x-rays, and gamma rays.

-Waves can travel through a vaccum
-These waves radiate in all directions
-travel through speed of light
-they are transverse waves
-they are made by interaction between an rlectric and a magnetic field.

These are the main points. I hope this will help you! ❤️.

What was the experiment carried out by Hershel & Ritter.

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Hershel discovered something called Infrared light. It was basically an experiment outdoors and you have a light and when the light hits another surface (like a deck) then that surface heats up