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
densk [106]
3 years ago
14

How do I count atoms in science

Physics
1 answer:
VashaNatasha [74]3 years ago
6 0

Answer:

The "2" tells us that there are 2 hydrogen atoms in this compound.

Explanation:

You might be interested in
A car engine produces a force of 2000N while moving a distance of 200m in a time of 10s. What is the power developed by the engi
andreyandreev [35.5K]
Power = work/time
Work = force * distance

(2000 N * 200 m) / 10 s = 40,000 Joules
3 0
3 years ago
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from the
Triss [41]

Answer:

Check the explanation

Explanation:

This is the step by step explanation to the above question:

v_i = v [ f_L *(v - v_b) - f_s*(v + v_b)] / [f_L * (v - v_b) + f_s*(v +v_b)]

= v * (83.1 * (v-4.3) - 80.7 ( v+4.3))/ [83.1 *(v - 4.3) + 80.7*(v + 4.3)]

v = 344 m/s

vi = 344 * ( 83.1* (344-4.3) - 80.7*(344+4.3) ) / (83.1 *(344 - 4.3) + 80.7*(344 + 4.3))

= 0.74 m/s

8 0
3 years ago
The new deal helped fix the economy but was not the perfect solution​
Roman55 [17]

you will find your answer through this link

https://www.britannica.com/event/New-Deal

5 0
3 years ago
The materials carried by the circulatory system include which of the following? (1) blood, (2) hormones, (3) oxygen, (4) cellula
Mariana [72]
Well it does carry blood and oxygen! Sorry but I'm not sure about 2 and 4.
3 0
3 years ago
Read 2 more answers
As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted o
astraxan [27]

Answer:

3.6 x 10⁶ Pa

Explanation:

A = Area of the heel = 1.50 cm² = 1.50 x 10⁻⁴ m²

m = mass of the woman = 55.0 kg

g = acceleration due to gravity = 9.8 m/s²

Force of gravity on the heel is given as

F = mg

Inserting the values

F = (55) (9.8)

F = 539 N

Pressure exerted on the floor is given as

P = \frac{F}{A}

P = \frac{539}{1.5\times 10^{-4}}

P = 3.6 x 10⁶ Pa

6 0
3 years ago
Other questions:
  • The atomic number of oxygen, 8 indicates that there are eight what???
    9·2 answers
  • Besides bones, the skeleton also contains connective tissues called the ???
    9·2 answers
  • The amplitude of a mechanical wave shows<br> What?
    15·1 answer
  • A 16-cm-long straight line connects the center of a turntable to its edge. The turntable rotates counter-clockwise at 45 rpm. A
    7·1 answer
  • What are three effect of force​
    7·1 answer
  • What does an electric current produce
    13·1 answer
  • Plz help me!!!! A spring is connected to a wall as shown below. A mass on a horizontal surface is connected to the springs and p
    6·1 answer
  • A baseball is thrown off of a building with an initial velocity of 17 m/s and lands 2.3 seconds later. How tall is the building?
    9·1 answer
  • - A thin film of oil * (n = 1.45) on a puddle of water, producing different colors. What is the minimum thickness of a place whe
    6·1 answer
  • How does a single fix pully help you do work
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!