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padilas [110]
3 years ago
8

I rly need help with these three questions

Physics
1 answer:
bazaltina [42]3 years ago
5 0

6). the presence of caffeine on the worm's skin

7). the worm's heart-rate

8). "Dripping caffeine on a worm's skin causes the worm's heart to beat faster."

(Note: The things she observed suggest but do not PROVE that this hypothesis is true.)

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Life cycle of a medium mass star
miskamm [114]

Our sun is a medium mass star, so it wouldn't be too different from the sun's life cycle. It is born, lives for about 10 billion years and then dies. ... As a medium mass star nears the end of its life, it runs out of hydrogen which it has been fusing onto helium in its core for its whole life.

8 0
2 years ago
What is a Non-Example of Newton's 1st law?
guajiro [1.7K]

Answer:

Say a 14 year old girl was at a construction site and she was asked to move something like a 10,000 pound brick( one brick). She would be acting on it as the unbalanced force but they would still not change their position.

so to say the girl would be doing everything she could to move that brick but the brick would still be in that same spot so the unbalanced force (the girl) would be acting on the thing that was at rest but it wouldn't move.

so the unbalanced force would not really be acting on the thing at rest; even though the unbalanced force was doing something to the brick.

( just think about it and you will eventually get it...just imagine in your head...)

Explanation:

5 0
2 years ago
An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50
Setler79 [48]

Answer:

very hard others will answer it

Explanation:

hard

6 0
2 years ago
Why does a projectile fired along a horizontal not follow a straight path?​
Stella [2.4K]

Answer: A projectile which is fired horizontally is being constantly acted upon by acceleration due to gravity, acting vertically downwards. Hence, it does not follow a straight line path. Also Why a projectile fixed along the horizontal not follow a straight line path? Because the projectile fired horizontally is constantly acts upon by acceleration due to gravity acting vertically downwards.

Explanation:

Hope this helped :)

3 0
3 years ago
The lung capacity of the average adult is 5.5 liters at the surface and only .37 liters at a depth of 100 meters. The formula to
Alika [10]
I think you can just sub the values in? unless the qn is asking for smth else?

4 0
3 years ago
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