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
larisa86 [58]
3 years ago
9

The atomic number of an element is found by?

Physics
2 answers:
azamat3 years ago
6 0

Calculate the number of neutrons. Now you know that atomic number = number of protons, and mass number = number of protons + number of neutrons. To find the number of neutrons in an element, subtract the atomic number from the mass number.

yKpoI14uk [10]3 years ago
6 0

Answer:

the atomic number of an element is found by its total number of electrons or protons.

You might be interested in
Do deaf children go through the four stages of acquiring language? Use what you’ve read in the chapter to explain why or why not
sdas [7]
No deaf children dont. im deaf and i dident go through those stages.

4 0
4 years ago
Some birds migrate 20,000 miles. If 1 mile equals 1.6 kilometers, calculate the distance these birds fly in kilometers.
faust18 [17]
Set up a proportion

1 mile/1.6 km = 20,000miles/x

Cross Multiply
x = (20,000) * (1.6)
x = 32,000 kilometers
6 0
4 years ago
Read 2 more answers
A wave is traveling at a speed of
Digiron [165]
Answer: 5Hz
Explanation: Frequency = Wave speed divided by wavelength.
3 0
3 years ago
2) The position of a particle is given r(t) = A(cos wt i + sin wt f), where w is a constant. (a) Show that the particle moves in
olya-2409 [2.1K]

Answer:

Explanation:

r(t) = A(cos wt i + sin wt f)

= A cos wt i + A sin wt j

x = A cos wt

y = A sin wt

radius r

r² = x² + y² ( This is equation of a circle with radius r  )

=  A² cos² wt +A² sin² wt

= A²

r = A

radius r = A

b )

speed = dr/dt

v = - Aw sinwt i + Aw coswt j

magnitude of velocity

I v I= Aw √(sin²wt + cos²wt)

= Aw ( constant )

acceleration

= dv / dt = - Aw² cos wt - Aw² sinwt

magnitude of acceleration

I a I = Aw²

= r w²

d ) centripetal force = m acceleration

m w² A  

=

7 0
3 years ago
What is a personal bias?
umka21 [38]

If you are asking it related to journalism, bias is a personal opinion regarding a subject.

3 0
4 years ago
Other questions:
  • A charged particle moves at 2.5 × 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 × 10–2 T. If t
    16·2 answers
  • According to Newton's third law, if you push on a wall, the wall ?
    11·2 answers
  • Can someone help me with this question
    7·2 answers
  • A driver starts from rest on a straight test track that has markers every 0.14 km. The driver presses on the accelerator and for
    12·1 answer
  • If an airplane undergoes a displace-
    8·1 answer
  • Hello, please anybody help if you can!!
    7·1 answer
  • A neurogenic bladder is a urinary problem caused by interference with the normal __________ associated with urination.
    14·1 answer
  • A toy car with a mass of 8 kg and velocity of 5 m/s to the right collides with a 5.28 kg car moving to the left with a velocity
    14·1 answer
  • True or false cleft palates is the failure of palate to form and join correctly
    9·1 answer
  • Astronauts wear liquid cooled space suits to keep their body temperature moderate. One
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!