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Solnce55 [7]
3 years ago
12

Identify the names of animals that lived on Earth before dinosaurs.

Physics
2 answers:
Mumz [18]3 years ago
7 0
Im sure there are others but i know that bugs existed as long as the earth has
Minchanka [31]3 years ago
7 0
Mainly sea creatures such as scorpions, jellyfish, and some other pre-historic creatures. Hope this helps.
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Which of the following objects is accelerating?
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Answer:

A

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3 years ago
Someone help please by providing work and answers please :)
Nastasia [14]
First we gotta use an equation of motion:

d = ut + \frac{1}{2} a {t}^{2}

Our vertical distance d= 100 m, initial vertical speed u = 0 m/s (because velocity is fully horizontal), and vertical acceleration a = 9.8 m/s2 because of gravity. Let's plug it all in!

100 = 0 + \frac{1}{2} (9.8) {t}^{2}

Now we just need to solve for t:

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5 0
3 years ago
Assume that the equator of the Earth is 24,000 miles long (that’s its circumference). Now, pretend that you are standing somewhe
slega [8]

Answer:

1000 mph

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Angular speed is given by

\omega=\dfrac{2\pi}{t}\\\Rightarrow \omega=\dfrac{2\pi}{24}

Velocity if given by

v=r\omega\\\Rightarrow v=\dfrac{24000}{2\pi}\times \dfrac{2\pi}{24}\\\Rightarrow v=1000\ mph

The person would be going at a speed of 1000 mph

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