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Alex
3 years ago
10

If two atoms have the same atomic numbers but different mass numbers, then they can be considered atoms of the same element.

Chemistry
2 answers:
stiks02 [169]3 years ago
8 0

Answer:

True.

Explanation:

If two atoms have the same atomic number, they have the same number of protons in the nucleus.

The number of protons derermines the identity of an atom.

So, two atoms with the same atomic number are the same element.

castortr0y [4]3 years ago
7 0

Same elements can have different nuclei. So, true.

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You have a mass of 54 kg and are sitting on a stool. The normal force the stool applies on you is ...
Karo-lina-s [1.5K]

Answer:

529.2 N

Explanation:

As we have studied the first law of motion, which states that every action has some reaction, equal in magnitude but having an opposite direction.

The force that is acting on the student will be due to gravitational force, that is equal to his weight.

                                              F=mg: 54kg x 9.8m/s^2 =529.2 N

So the weight of student is exerting downwards towards the stool and land. The stool will also exert a force on the student that will be equal in magnitude but opposite in direction, then it will be 529.2 N.

This is because the student is sitting in a constant state and all the weight is exerted on the stool.

Note: This answer is very generic supposing that all the weight of the student is on stool. But, if we suppose that student's legs are on floor so it means the force of gravity acting on the stool has become less because student's mass on stool is less. So the answer would be a force somehow less than 529.2 N.  However, since the question asked normal force, it would be weight of student in general terms.

Hope it helps!

7 0
3 years ago
Velocity is the slope of the acceleration vs. time graph.<br>O<br>A. True<br>False​
Maurinko [17]

Answer:

False

Explanation:

The slope of a velocity-time graph gives acceleration. Acceleration can be defined as the change in velocity with time.

A slope denotes the gradient of line. It takes into consideration the changes on both y and x axis. The ratio of the changes gives the slope.

On a velocity-time graph, the y-axis is the velocity and the x-axis is time. The change in velocity with time gives acceleration.

The slope of an acceleration

-time graph is not velocity.

7 0
3 years ago
Which island is older Kauai or Maui
evablogger [386]

Answer:

Kauai

Explanation:

I look this up when I am doing math

5 0
2 years ago
The anticodon is the three-base code on the tRNA molecule that binds to the codon on mRNA. What is the associated codon for the
Oksi-84 [34.3K]
So it would be the complimentary base pairing, meaning that the codon must have been:
GAC
(Which is the codon for aspartic acid)
8 0
3 years ago
Read 2 more answers
Look at the Recording station detector on the upper left side of the Gizmo. What happens when the seismic waves hit the recordin
Ne4ueva [31]

Answer:

I don’t know what recording station you’re referring to but, When seismic waves reach the seismograph, a graphical record, or seismogram, is produced

Explanation:

4 0
3 years ago
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