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irakobra [83]
3 years ago
13

What mistake did Carl make?

Physics
2 answers:
True [87]3 years ago
8 0

Answer:

He did not multiply the chlorine and oxygen atoms by the coefficient 4

Explanation:

otez555 [7]3 years ago
6 0

Answer:

The correct answer is:

'He did not multiply the chlorine and oxygen atoms by the  coefficient 4'.

Explanation:

Number of atoms in 4 Ca(ClO_3)_2

The 4 in front of molecular formula of calcium chlorate is its coefficient . it tells us about the molecules or moles of compound.

Number of calcium in 1 molecule of calcium chlorate = 1

Calcium atoms in 4 molecule of calcium chlorate = 1 × 4 = 4

Number of calcium in 1 molecule of calcium chlorate = 2

Chlorine atoms in 4 molecule of calcium chlorate = 2 × 4 = 8

Number of oxygen in 1 molecule of calcium chlorate = 3 × 2 = 6

Oxygen atoms in 4 molecule of calcium chlorate = 6 × 4 = 24

So, number of atoms of different elements calculated by Carl was wrong as he didn't multiplied the coefficient 4 with chlorine and oxygen atoms.

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MrMuchimi
The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of the sound.

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4 0
2 years ago
What disagreement did Sigmund Freud have with both Josef Breuer and Jean Martin Charcot?
GREYUIT [131]

Answer:

The correct answer is 'A'

Explanation:

I guessed and was correct.

4 0
2 years ago
A force of 20 N acts toward the east. Another force of 27 N acts at the same point toward the west. What is the magnitude and di
Jet001 [13]
Since we are working in one dimension (left right or East West), we don't need to worry about angles! It's just simply a matter of adding things up!

First list out all the forces and add negative (-ive) signs to each of the 'west' forces like this.

20 East + (-27 West) + ? = 10 East

so it's easy to see that 20 + (-27) = -7
So to get to 10 from -7 just do the sum to get 17.
Since 17 is not negative it must be in the direction of East.
So the answer is:
Magnitude = 17 N
Direction = toward the East

8 0
3 years ago
a model rocket climbs 200 m in 4 seconds. if was moving 10 m/s to begin with, what is it’s final velocity?
artcher [175]
So first Identify all the given Varibales so u can choose which Eqauton to use

D=200m
T=4s
Vi=10m/s
Vf=?

You should this equation

D= 0.50(Vf+Vi)T

Plug in the values

200= 0.50 (Vf+10) 4

Divide the 4 out of the right side and if you do sumthing to one side you gotta do it to the other

200 divided by 4= 0.50(Vf+10)
50= 0.50(Vf+10)

Now expand the 0.50

So 50= 0.5Vf + 5 (because 0.5 times 10 is 5)

Now get rid of the 5

50-5= 0.5Vf

45 =0.5Vf now Divide the 0.5 out

45 divided by 0.5 = Vf

And 45/0.5 is 90

So 90=Vf

Therefore the final Velocity is 90m/s
8 0
3 years ago
an electron accelerated from rest through a voltage of 770 v enters a region of constant magnetic field. part a if the electron
finlep [7]

The magnitude of the magnetic field on which an electron accelerated from rest through a voltage of 770v enters a region of constant magnetic field is 3.744 * 10^{-4} T

From the conservation of energy, we have

\frac{1}{2}mv^{2}  =qV

v=\sqrt{\frac{2qV}{m} }

=\sqrt{\frac{2*(1,6 * 10^{-19})(770) }{9.11 * 10^{-31} } }

=1.644*10^{7m/s

At Equilibrium, Centripetal force = magnetic force

\frac{mv^{2} }{r}=Bqv

B=mv/rq

by putting, m=9.11* 10^-31 kg

v=1.664*10^7m/s

r=25*10^-2m

q=1.6*10^-19 C

We get, B=3.774* 10^-4 T

Hence the magnitude of the magnetic field, B=3.774* 10^-4 T

Learn more about Magnetic Field here:

brainly.com/question/23096032

3 0
7 months ago
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