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
Veseljchak [2.6K]
3 years ago
9

Which is greater, the mass of the compounds before a chemical reaction or the mass of the compounds after a chemical reaction?

Physics
1 answer:
harkovskaia [24]3 years ago
7 0
The masses before and after are equal

You might be interested in
A blackbody curve relates _____. intensity of radiation to energy intensity of radiation to wavelength wavelength to energy surf
neonofarm [45]

A blackbody curve represents the relation between <u>intensity of radiation with wavelength.</u>

Here in this curve we can see that all ideal blackbody radiates almost all wavelength of radiations and these radiations are of different intensity.

here intensity will be maximum for a given wavelength of radiation and the relation of this wavelength with the temperature of the object is given by Wein's law

It is given by

\lambda = \frac{b}{T}

now if we increase the temperature the maximum intensity for which wavelength is given will shift to the left.

Using this all we can also compare the temperature of two blackbody for which radiation graph is given to us.

5 0
3 years ago
Read 2 more answers
Plz, help the rubber ball be dropped from the top of a ladder. It bounces on the same spot on the ground several times to a less
Vladimir [108]

Answer:

What do you mean?

Explanation:

6 0
2 years ago
A scientist directs monochromatic light toward a single slit in an opaque barrier. The light has a wavelength of 580 nm and the
vredina [299]

Answer:

a) 9.72 mm

b) 4.86 mm

Explanation:

wave length of light  λ is  580 nm = 580 \times 10⁻⁹ m

Width of slit d = 0.215\times 10⁻³ m

Distance of screen D  = 1.8 m.

Width of one fringe = \frac{\lambda\times D}{d}

Putting the values we get fringe width

= \frac{580\times10^{-9}\times1.8}{.000315}

=4.86 mm.

a) Width of central maxima = 2 times width of one fringe

= 2 times 4.86

=9.72 mm

b) width of each fringe except central fringe  is same , no matter what the order is.Only brightness changes .

So width of either of the two first order bright fringe will be same and it will be  

= 4.86 mm.

3 0
3 years ago
What is the power output of a pump which can raise 60kg of water height to height of 10m every minute
sattari [20]

Answer:

<h3>Power = Work Done/time</h3>

=> Power = 60×10×10/60

=> Power = 6000/60

=> Power = 100 Watt

Hence the power output of a pump is 100 Watts.

8 0
2 years ago
5. The net external force on a rock of mass 4.2 kg is 8.0 N forward. Find the acceleration of the rock.
andreev551 [17]

Answer:

1.904

Explanation:

F= ma

8 = 4.2 a

a = 8/4.2

a = 1.904

6 0
2 years ago
Other questions:
  • Ikes teacher tells him that this process has caused each strip of tape to gain a negative electric charge. What could ike do nex
    6·1 answer
  • A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second
    10·1 answer
  • What is the force on a body of mass 20 kg moving with an acceleration of 3 m/s2 ?
    13·2 answers
  • Are we even real? Do we exist or are we robots or a simulation or experiment?
    14·2 answers
  • During a race, a runner runs at a speed of 6 m/s. Four seconds later, she is running at a speed of 10 m/s. what is the runners a
    9·1 answer
  • why doesn't light bend (refract) when it initially enters a glass? what actually happens to the light inside the semi-circle?
    10·1 answer
  • A series LR circuit contains an emf source of having no internal resistance, a resistor, a inductor having no appreciable resist
    7·1 answer
  • there are 3 balls , ball 1 has a mass of 2 kg ,ball number 2 has a mass of 0.5 kg, and ball number 3 has the mass of 0.02 kg ...
    7·1 answer
  • 39 liters of water at
    13·1 answer
  • If an object is dropped from 10 m above the ground, what is the height at which its kinetic energy and potential energy are equa
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!