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3 years ago

Select all of the answers that apply.

Physics

2 answers:

denis-greek [22]3 years ago

8 0

Answer:

Birds are just as widespread as mammals during this era.

There are no mammals present during this era.

Explanation:

aliina [53]3 years ago

3 0

The answer is There are no mammals present during this era. The studies revealed that animals on this era were mostly birds, reptiles, and amphibians. Birds were more dominantly known as the big predator animals in this period. It was only during the middle last part and late period of the Cenozoic period when the mammals came to populated and evolved. Also, it was the period when the man finally came.

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The half life of radium 222 is 38 seconds if you had a 12 gram sample how much would be left after 72 seconds

poizon [28]

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3 years ago

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stepladder [879]

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2 years ago

Which of the following choices is an example of an allele?

VikaD [51]

Answer:

Blue eye-color gene

7 0

2 years ago

A wheelbarrow is a good example of a second-class lever. True or False

olganol [36]

Answer:

true

Explanation:

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3 0

3 years ago

You push very hard on a heavy desk, trying to move it. You do work on the desk:

frozen [14]

Answer:

Explanation:

We know that work done is given by

$W=F.d=Fdcos\Theta$

So there are two case in which work done is zero

First case is that when force and displacement are perpendicular to each other

And other case is that when there is no displacement

So for work to be done there must have displacement, if there is no displacement then there is no work done

So option (c) will be the correct option

3 0

3 years ago