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
Contact [7]
3 years ago
8

Which method of separation would work on a homogeneous mixture salt water

Physics
2 answers:
Eddi Din [679]3 years ago
7 0

Answer:

Evaporation

Explanation:

Salt is very soluble in water. Hence in other to be able to recover salt from a homogeneous mixture of water and salt, the mixture is heated so that water molecules can evaporate leaving the salt behind in the evaporating dish.

Butoxors [25]3 years ago
5 0
To separate a mixture of salt and water, you can try first by using filter paper hen with the extra water part set it out to the window so that the salt water evaporates and only the salt is remaining.
You might be interested in
I really need the answer to this question please
Sliva [168]
I believe the answer is option A
5 0
3 years ago
Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 1014 hz. calculate the
olga nikolaevna [1]
The energy of a single photon is given by:
E=hf
where
E is the energy
h is the Planck constant
f is the frequency of the light

The light in our problem has a frequency f=5.49 \cdot 10^{14}Hz, so the energy of each photon of that light is:
E=hf=(6.6 \cdot 10^{-34} Js)(5.49 \cdot 10^{14} Hz)=3.64 \cdot 10^{-19} J
5 0
3 years ago
A planet has two small satellites in circular orbits around the planet. the first satellite has a period 18.0 hours and an orbit
puteri [66]
The two satellites orbit around the same planet, so we can use Kepler's third law, which states that the ratio between the cube of the radius of the orbit and the orbital period is constant for the two satellites:
\frac{r_1^3}{T_1^2}= \frac{r_2^3}{T_2^2}
where
r_1 is the orbital radius of the first satellite
r_2 is the orbital radius of the second satellite
T_1 is the orbital period of the first satellite
T_2 is the orbital period of the second satellite

If we use the data of the problem and we re-arrange the equation, we can calculate the orbital period of the second satellite:
T_2 =  \sqrt{T_1^2 ( \frac{r_2}{r_1} )^3} = \sqrt{(18.0 h)^2 ( \frac{3\cdot 10^7 m}{2 \cdot 10^7 m} )^3}  = 33.1 h
8 0
3 years ago
A 74 kg firefighter slides, from rest, 4.9 m down a vertical pole. (a) If the firefighter holds onto the pole lightly, so that t
In-s [12.5K]

Answer:

Her speed is 9.8 meter per second

Explanation:

Newton's second law states that acceleration (a) is related with force (F) by:

\sum\overrightarrow{F}=m\overrightarrow{a} (1)

Here the only force acting on the firefighter is the weight F=mg so (1) is:

mg=ma

Solving for a:

a=g

Now with the acceleration we can use the Galileo's kinematic equation:

Vf^{2}=Vo^{2}+2a\varDelta x (2)

With Vf the final velocity, Vo the initial velocity and Δx the displacement, because the firefighter stars from rest Vo=0 so (2) is:

Vf^{2}=2a\varDelta x

Solving for Vf

Vf=\sqrt{2g\varDelta x}=\sqrt{2(9.81)(4.9)}

Vf=9.8\frac{m}{s}

6 0
3 years ago
1. Newton's 3rd Law states...
Vika [28.1K]

Answer:

C

Explanation:

There's a reason newton's 3rd law is called action-reaction :D

A - 1st law/inertia

B - 2nd law/f=ma

5 0
3 years ago
Other questions:
  • In this experiment, you will use a natural indicator to indirectly determine the H+ concentration of some common household solut
    13·2 answers
  • A fixed system of charges exerts a force of magnitude 18 n on a 9.0 c charge. the 9.0 c charge is replaced with a 4.0 c charge.
    7·1 answer
  • A heat engine is a device that uses _____to produce useful work.
    8·2 answers
  • According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?
    6·2 answers
  • What is one result of a chemical change?
    7·1 answer
  • In a 1.05-T magnetic field directed vertically upward, a particle having a positive charge of magnitude 6.50 * 10^-6C and initia
    11·1 answer
  • Four toy racecars are racing along a circular race track. The cars start at the 3-o'clock position and travel CCW along the trac
    13·1 answer
  • When the bones have atrophy remodeling, what happens to their strength?
    15·1 answer
  • If Vector A (6,4) and Vector B is (-2, -1), what is A-B
    8·1 answer
  • All moving objects don’t have momentum<br> A. True<br> B. False
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!