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
Ierofanga [76]
3 years ago
7

Which method would you use if you have a pile of gravel with different types of rocks and minerals I needed to separate them int

o their individual components???
Evaporation.
Distillation.
Filtration.
Chromotography.​
Physics
1 answer:
Ket [755]3 years ago
3 0

Answer:

Chromatography.​

Explanation:

i think this would be the best way

You might be interested in
Calculate specific heat of liquid if a 450. g iron block is heated to 98.0 C and then droped into a calorimeter with 125 g of un
Naya [18.7K]

Answer:

Specific heat of liquid 1.258 \ J/g^0C.

Explanation:

We know in thermal equilibrium :

Loss in heat by iron block = Gain in heat by liquid .

Specific heat of iron = 0.45 J/g^0C.  { source internet }

Now , loss in heat by iron block = mC_{iron}\Delta T=450\times 0.45\times 57.6=11664\ J.

Heat gain by liquid=mC_{liquid}\Delta T=450\times C_{liquid}\times 20.6=9270\times C_{liquid}.

Equating both we get :

C_{liquid}=1.258 \ J/g^0C.

7 0
3 years ago
How can you increase the rate of a reaction? Select all that apply. *
sergij07 [2.7K]

Answer:

- Increase the concentration of the reactants

-increase the temperature

- introduce a catalyst

6 0
3 years ago
Can u help me with the answer
Mice21 [21]
C. 6.7 hope it helps:))
7 0
3 years ago
the primary of a transformer connected to 170v has 10 turns. the secondary has 70 turns. find voltage. this is a step down trans
Nikolay [14]
No it isn't. (Unless you connect it backwards.)

If the primary has 10 turns and the secondary has 70 turns,
then the voltage that appears across the secondary is
7 times the voltage that you feed to the primary.

If you're 'exciting' the primary with 170 volts, then you need
to be cautious around the secondary terminals, because there's 
1,190 volts there !

If you want to use your transformer in a step-down configuration,
you can certainly connect it up the other way around.

Feed the 170 volts to the winding with 70 turns.  You've reversed
the labels 'primary' and 'secondary', and that's OK.  The voltage
at the terminals of the 10-turn winding will be (170/7) = 24.3 volts.
4 0
4 years ago
What is the frequency of a light wave that has a wavelength of 0.039 m?
lyudmila [28]

Answer:

Convert your wavelength into meters. Divide the speed of light, ~300,000,000 m/s, by the wavelength in m. This gives you the wave's frequency

Explanation:

5 0
2 years ago
Other questions:
  • What’s the similarity between nuclear fission and nuclear fusion
    15·1 answer
  • _______ describes gases as small, energetic particles moving around and bouncing into each other?
    11·2 answers
  • Which of the following statements about protons are false? Check all that apply. Check all that apply. Protons have about the sa
    12·1 answer
  • The lasers are red, meaning that they are giving off light in the _____ region of the electromagnetic spectrum
    5·2 answers
  • A railroad car moving at a speed of 3.49 m/s overtakes, collides, and couples with two coupled railroad cars moving in the same
    8·1 answer
  • What are two examples of observations you might make, and two examples of inferences you might make, when looking at logs burnin
    6·1 answer
  • Calculate the rate of acceleration of a 2,000.-kilogram truck if a force of 4,200 N is used to make it start moving forward?
    10·1 answer
  • An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50 newtons. Calcuate the acceleration
    5·1 answer
  • A man on a beach notices that four waves arrive on the shore every 20 seconds. What is the frequency of the waves?
    11·1 answer
  • How does the law of conservation apply to Earth's Energy Budget?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!