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Gennadij [26K]
3 years ago
5

Anatomy & physiology Helllp please!!!!

Physics
1 answer:
Liula [17]3 years ago
5 0

Answer: It's the third one.

Explanation:

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The total sum of atoms in an object.
Darina [25.2K]

Answer:

Mass

Explanation:

The total sum of atoms in an object is the mass of the object. There are several ways to quantify the number of atoms in a substance.

  • In chemical calculations, the number of moles is a good representation of the number of atoms contained in a body.
  • Mass is the amount of substances a body has.
  • If we can sum up all the atoms in a substance, one will arrive at the mass of the substance
4 0
3 years ago
I NEED THE ANSWER ASAP I GIVE THANKS + 5 STARS
Kobotan [32]
Work or energy spent=force times distance=25N*4m=100Nm
power=energy or work divided by time=100Nm/5s=20Nm/s
5 0
4 years ago
When light reflects on a mirror, does it undergo a phase change?
Lynna [10]
The light does not undergo a phase change.

Also, the surface of a mirror is a rigid boundary.
5 0
3 years ago
Two cars are traveling around identical circular racetracks. Car A travels at a constant speed of 20 m/s. Car B starts at rest a
Tomtit [17]

Answer:

b. it has the same centripetal acceleration as car A.

Explanation:

According to the question, the data provided is as follows

Constant speed of car A = 20 m/s

Constant tangential acceleration until its speed is 40 m/s

Based on the above information, the true statement is the same centripetal acceleration as car A because

As we know that

Centripetal acceleration is

= \frac{V^2}{r}

where,

V^2 = velocity

r = radius of the path

Now if both car A and car B moving in the same or identical circular path having the same velocity so in this case there is the same centripetal acceleration for that particular time

hence, the second option is correct

3 0
4 years ago
Question 2 of 10
Arlecino [84]

Answer:

B: Energy that is transformed is neither created or destroyed

Explanation:

4 0
2 years ago
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