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
earnstyle [38]
3 years ago
13

Help me plzzzz

Physics
2 answers:
Vinil7 [7]3 years ago
6 0

Answer:

C. Mg3N2

How I Know :

Hope this helps you ! good luck !

add me as a friend , ill add back so we can be friends !! <3

☆ REMINDER : ☆

☁ ˖⁺ stay safe we are still in the middle of a pandemic

☁˖⁺ drink plenty of water to stay hydrated

☁ ˖⁺ love yourself and know someone loves you

☁ ˖⁺ never give up and talk to someone if your feelings scared/sad/mad

☁ ˖⁺ its never okay to stay silent .

﹤୨♡୧﹥ have an amazing day/night

KiRa [710]3 years ago
4 0

Answer:

C. Mg3N2

Explanation:

Magnesium has a positive 2 charge and nitrogen has a negative 3 charge. To completely balance it out, you need three magnesium’s and two nitrogen’s. The final charge for magnesium would be positive 6 and the final charge for nitrogen would be negative 6, this will make it neutral.

You might be interested in
A hydrogen atom in the n=7 state decays to the n=4 state. what is the wavelength of the photon that the hydrogen atom emits? use
frez [133]

A hydrogen atom in the n=7 state decays to the n=4 state. The wavelength of the photon that the hydrogen atom emits is 4592.59nm.

The Energy of photon is the energy possessed by a photon when it moves from a high energy level to a low energy level. It emits a photon of a certain wavelength. The following relation can be used to find out the relation between the energy levels and the energy possessed:

E = 13.6 × Z² (1/n₂² - 1/n₁²) eV

where, n₁ is the initial energy level i.e. n₁ =7

            n₂ is the higher energy level i.e. n₂ = 4

            E is the energy possessed

            Z is the atomic number, Z = 1 for H-atom

Subsituting in above equation,

E = 13.6 (1/16 - 1/49) eV

E = 0.27 eV

We know that,

E = hc / λ  

where, h is Planck constant

           c is speed of light

            λ is wavelength

On subsituting,

0.27 eV = 1240/ λ

⇒ λ = 4592.59 nm

Hence, the wavelength of photon emitted by Hydrogen atom is 4592.59nm.

Learn more about Energy of Photon here, brainly.com/question/2393994

#SPJ4

 

5 0
1 year ago
What is the weight of a person with a massa of 80kg
Archy [21]
784 Newtons or 176.37 lbs
5 0
3 years ago
A pebble is thrown into the air with a velocity of 19/m at an angle of 36 with respect to the horizontal.
kow [346]

Answer:

The maximum height the pebble reaches is approximately;

A. 6.4 m

Explanation:

The question is with regards to projectile motion of an object

The given parameters are;

The initial velocity of the pebble, u = 19 m/s

The angle the projectile path of the pebble makes with the horizontal, θ = 36°

The maximum height of a projectile, h_{max}, is given by the following equation;

h_{max} = \dfrac{\left (u \times sin(\theta) \right)^2}{2 \cdot g}

Therefore, substituting the known values for the pebble, we have;

h_{max} = \dfrac{\left (19 \times sin(36 ^{\circ}) \right)^2}{2 \times 9.8} = 6.3633894140470403035477570509439

Therefore, the maximum height of the pebble projectile, h_{max} ≈ 6.4 m.

3 0
3 years ago
Un vehicle surt, en un instant, d'un punt A cap a un altre punt B amb una velocitat constant de 36 km/h. Després d'un minut(60 s
kati45 [8]



Ask Siri or goggle has all answers



6 0
3 years ago
PLEASE HELP ASAP!!! 49 POINTS AND BRAINLIEST FOR BEST AND FASTEST ANSWER!!! (DO NOT ANSWER IF YOU DON'T KNOW, OR I WILL REPORT Y
Colt1911 [192]

Neap tide = tide where there is the least difference between high and low water levels

Spring tide = tide where there is the greatest difference between high and low water levels

Equator = an imaginary line drawn around earth dividing it into northern and southern hemispheres

Seasons = the divisions of the year marked by specific weather patterns and daylight hours.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Other questions:
  • How much does 1 liter of water weigh
    14·1 answer
  • What distance does the car cover in the first 4.0 seconds of its motion?
    10·1 answer
  • 1. How do galaxies change over time? 2. How are galaxies created? 3. How was Hubble important to our understanding of galaxies?
    5·1 answer
  • Fiona drives 18 meters east and 24 meters south. What is the magnitude of her displacement?
    10·1 answer
  • The table shows the mass of and acceleration due to gravity for several
    15·1 answer
  •  A cat napping on a window sill demonstrates which scientific concept?
    15·2 answers
  • List 4 ways to separate mixtures
    5·1 answer
  • In your everyday life you come across a range of motions in which
    14·1 answer
  • How to calculate the average value of the indirect measurements of KE
    6·1 answer
  • A powerful motorcycle can produce an acceleration of 3.00 m/s2 while traveling at 106.0 km/h. At that speed, the forces resistin
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!