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
katrin [286]
2 years ago
5

How do I get number of atoms?

Physics
1 answer:
Zina [86]2 years ago
4 0
To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6.02 x 10^23.
You might be interested in
Humans impact the Earth in good AND bad ways. <br><br>A) True <br><br>B) False
const2013 [10]

Answer:

True

Explanation:

yes we can see that we are helping animals but we create pollution which is very bad

7 0
3 years ago
The earth has a vertical electric field at the surface, pointing down, that averages 100 N/C. This field is maintained by variou
Kipish [7]

Answer:

The excess charge on earth's surface was calculated to be 4.56 × 10⁵ C

Explanation:

Using the formula for an electric field;

E = kQ/r²

k = 1/(4πε₀) = 8.99 × 10⁹ Nm²/C²

E = 100N/C

r = radius of the earth = 6400 km = 6400000m

Q = Er²/k = 100 × (6400000)²/(8.99 × 10⁹)

Q = 455617.4 C = 4.56 × 10⁵ C

Hope this helps!!!

6 0
3 years ago
An object has an acceleration of 6.0 m/s/s. If the net force was doubled and the mass was one-third the original value, then the
alexandr402 [8]

Hahahahaha. Okay.

So basically , force is equal to mass into acceleration.

F=ma

so when F=ma , we get acceleration=6m/s/s

Force is doubled.

Mass is 1/3 times original.

2F=1/3ma

Now , we rearrange , and we get 6F=ma

So , now for 6 times the original force , we get 6 times the initial acceleration.

So new acceleration = 6*6= 36m/s/s

5 0
3 years ago
A. If a T-Rex runs 20 meters in 4 seconds, what is it’s average speed?
mariarad [96]

5m/s

100m

Explanation:

Average speed is sum of distance distance traveled in a given time by a body.

 Average speed= \frac{total distance covered}{time taken}

Distance = 20m

time = 4s

  Average speed = \frac{20}{4} = 5m/s

For the spaceship;

   Distance covered = speed x time

Speed = 50m/s

time = 2s

 Distance covered = 50 x 2 = 100m

learn more:

Average speed brainly.com/question/5063905

#learnwithBrainly

3 0
2 years ago
CAN SOMEONE PLEASE HELP ME ASAP?
ICE Princess25 [194]
The first one is dependent variable
<span />
7 0
3 years ago
Read 2 more answers
Other questions:
  • In humans, having freckles is dominant over not having freckles. Neither Jillian nor her husband Frank have freckles. Of thier f
    6·1 answer
  • Mr. Stephenson drives his car from Dallas to Town X, a distance of 437 km. The trip takes 7.27 hours. What is the average speed
    6·1 answer
  • Ben wants to model how the motion of particles changes with temperature. He considers water in an iron pot. Ben draws a model to
    6·1 answer
  • Tim's car breaks down just down the street from his house. he and his friends decide to try to push it to his house. using newto
    11·2 answers
  • A surgeon makes an incision that divides the patient's abdomen into superior
    5·1 answer
  • During a rodeo, a clown runs 7.7 m north, turns 49.9 degrees east of north, and runs 6.4 m. Then after waiting for the bull to c
    15·1 answer
  • A pilot can withstand an acceleration of up to 9g, which is about 88 m/s2, before blacking out. What is the acceleration experie
    7·1 answer
  • Match the glacier feature with its description.
    5·2 answers
  • What elements make up most of the mantle?
    8·2 answers
  • 4. A car with a mass of 1000 kg is travelling at an acceleration of 25 m/s2 and hits a wall. What is
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!