1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vadim26 [7]
3 years ago
11

Which of the following represent an atom from period 3?WILL MARK BRAINLIEST

Physics
1 answer:
irinina [24]3 years ago
3 0

Answer:

First one

It has 3 orbital

You might be interested in
What factor affects the polarization of light by scattering?
MatroZZZ [7]

Answer:

The correct answer would be A.

Explanation:

I have gotten this answer many times and have never failed once just trust me.

4 0
2 years ago
Which of the following statements is false? Group of answer choices Light that is high in energy has a high frequency. The atomi
MArishka [77]

Answer:

The last statement is false.

Explanation:

Photons (Electromagnetic radiation) are released when electrons drop from a higher energy lever to a lower energy level. Therefore the opposite insinuated by the last statement is wrong.

4 0
3 years ago
In the context of energy transfers with hot and cold reservoirs, the sign convention is that _______________.
Likurg_2 [28]

Answer:

B. QC > 0; QH < 0

Explanation:

Given that there are two reservoir of energy.

Sign convention for heat and work :

1.If the heat is adding to the system then it is taken as positive and if heat is going out from the system then it is taken as negative.

2. If the work is done on the system then it is taken as negative and if the work is done by the system then it is taken as positive.

From hot reservoir heat is going out that is why it is taken as negative

Q_H

From cold reservoir heat is coming inside the reservoir that is why it is taken as positive

Q_C>0

That is why the answer will be

Q_H ,Q_C>0

8 0
3 years ago
Why are lunar calendars not more widely used today?
Nookie1986 [14]
The seasons affect the scheduling of far more events the moon phases do.
6 0
3 years ago
Read 2 more answers
A wave has a length of 8 meters and a speed of 32 meters per second. What is the frequency of the wave
Naddika [18.5K]

Answer:

The frequency of wave is 4 hertz.

Explanation:

Given,

wave length = 8m

speed of sound ( v) = 32 m/s

frequency ( f) = ?

we know,

v = f × lambda

or, 32 = f × 8

or, f = 32/8

or, f = 4 Hertz.

5 0
3 years ago
Other questions:
  • Why is the gravitational potential energy of an object 1 meter above the moons surface less than its potential energy 1meter abo
    9·1 answer
  • True or false a mixture of soil has the same chemical composition throughout ?
    11·2 answers
  • An automobile spare tire is inflated to a certain pressure. When the tire is placed on a car, the weight of the car causes the p
    12·2 answers
  • Ninety-nine percent of the radiation from the sun consists of visible light, ultraviolet light.true or false?
    13·1 answer
  • A helium atom has a mass of mHe= 4.002604 u. When disassembled into its constituent subatomic particles (2 protons, 2 neutrons,
    14·1 answer
  • Select the statement that correctly describes how light travels?
    11·1 answer
  • Bumper cars A and B undergo a collision during which the momentum of the combined system is conserved.
    12·1 answer
  • C
    9·1 answer
  • A copper plate is free to swing between the poles of a large electromagnet. When the field is turned up the plate Group of answe
    12·1 answer
  • Plz help, its an emergency, giving lots of points for it. and srry if its in the wrong subject, not really sure? I just don't un
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!