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
matrenka [14]
3 years ago
12

1 point

Physics
1 answer:
WINSTONCH [101]3 years ago
7 0

Answer:

 Mg- 27   means isotope with 12 protons and 15 neutrons.

Also 27 is mass number which express sum of protons and neutrons.

In nucleus one neutrn decays to electron and proton. Mass number remain same but Al-27 nucleus contain 13 protons and 14 neutrons. Electron is ejected out from nucleus.

You might be interested in
Suppose you were bungee jumping from a bridge while blowing a hand-held air horn. How would someone remaining on the bridge hear
Genrish500 [490]

Answer:

The pitch will progressively lower

Explanation:

If i were bungee jumping from  a bridge while blowing a hand-held air horn and someone who remains on the bridge will hear a decreased pitch or frequency as the source is moving away from the stationary listener as per the Dooplers effect. Hence, the pitch will progressively lower as the source is moving away from the observer.

4 0
3 years ago
Read 2 more answers
If the only forces acting on a 2.0kg mass are F1 = (3i-8j)N and F2 = (5i+3j)N, what is the magnitude of the acceleration of the
belka [17]

Answer: 4.7m/s²

Explanation:

According to newton's first law,

Force = mass × acceleration

Since we are given more the one force, we will take the resultant of the two vectors.

Mass = 2.0kg

F1+F2 = (3i-8j)+(5i+3j)

Adding component wise, we have;

F1+F2 = 3i+5i-8j+3j

F1+F2 = 8i-5j

Resultant of the sum of the forces will be;

R² = (8i)²+(-5j)²

Since i.i = j.j = 1

R² = 8²+5²

R² = 64+25

R² = 89

R = √89

R = 9.4N

Our resultant force = 9.4N

Substituting in the formula

F = ma

9.4 = 2a

a = 9.4/2

a = 4.7m/s²

Therefore, magnitude of the acceleration of the particle is 4.7m/s²

3 0
3 years ago
What kind of law of motion A car still moves for a short period even after the brakes
nikklg [1K]

Answer:

<h2>inertia of motion </h2>

Explanation:

.... ...

3 0
2 years ago
where would information on the chemical and physical properties of a specific chemical be located in a laboratory or in the work
goldenfox [79]

Answer:

Both

Explanation:

8 0
3 years ago
you throw an object straight up at 15m/s. how fast is it going when it gets back to the height from which you threw it?
laiz [17]
At the same speed because it will slow down as it approaches the peak then speed up as it goes down again


it will be going 15m/s when it gets to the same height if we neglect air resistance and the object doesn't hit something
8 0
3 years ago
Other questions:
  • How does conduction occur?
    9·1 answer
  • What is the acceleration of a 30.0-kg go kart if the thrust of its engine is 300.0 N?
    12·2 answers
  • What's an impure potassium carbonate
    8·1 answer
  • A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. The trains collide. After the collisi
    15·2 answers
  • You ride your bike around the neighborhood block at a constant speed 9 km/h. What changes?
    7·1 answer
  • A voltage amplifier needs a high input resistance and a low output resistance. Select one: True False
    8·1 answer
  • What is strain?
    15·1 answer
  • HELP PLEASE! 13 POINTS + BRAINLIEST.
    10·2 answers
  • Upon inspiration, what is the name of the air in the conducting zone that is not available for gas exchange?.
    10·1 answer
  • Determine the angle between the directions of vector a = 3.00i 1.00j and vector b = 1.00i 3.00j .
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!