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Lynna [10]
3 years ago
13

Here is a multiple choice I need help on:

Chemistry
1 answer:
Ivenika [448]3 years ago
3 0
I'm pretty sure it's B because carbon atoms are in all living organisms. They can also be bonded in different varations.
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Read 2 more answers
2. A 10 kg ball is rolled down a rail from a height of 20 m. What is the velocity at the bottom of the
solmaris [256]

Answer:

19.8m/s

Explanation:

Given parameters:

Mass of the ball  = 10kg

Height of the rail  = 20m

Unknown:

Velocity at the bottom of the rail  = ?

Solution:

The velocity at the bottom of the rail is its final velocity.

Using the appropriate motion equation, we can find this parameter;

   V²   = U²  + 2gH

V is the final velocity

U is the initial velocity

g is the acceleration due to gravity

H is the height

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  V²  = O²  + 2 x 9.8 x 20

 V  = 19.8m/s

3 0
3 years ago
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