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
Nookie1986 [14]
3 years ago
12

Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes a dip to discover that the

water tastes salty. What kind of change has occurred
Physics
1 answer:
Tpy6a [65]3 years ago
6 0
It is a chemical change because the salt is dissolving.
You might be interested in
When a person is standing upright, the weight of anything being lifted and carried in the hands is first reflected onto the:
hichkok12 [17]

Pelvic girdle

In human anatomy, the pelvis is a complex of bones that connects the trunk and the legs, supports and balances the trunk, and houses and supports the intestines, the urinary bladder, and the internal organ. It is sometimes referred to as the bony pelvis or the pelvic girdle.
One is located on the left side of the body and the other is located on the right. They come together to make the pelvic girdle, a portion of the pelvis. The hip bones are attached to the upper portion of the skeleton at the sacrum.
The pelvic girdle's main function is to support the upper body's weight while seated and transfer that weight to the lower limbs while standing. For the muscles in the trunk and lower limbs, it functions as attachment point.

To learn more about pelvic girdles please visit -
brainly.com/question/24394348

#SPJ4

8 0
2 years ago
A thin partition divides a thermally insulated vessel into a lower compartment of volume V and an upper compartment of volume 2V
Anni [7]

Answer:

1.89mol

Explanation:

The entropy change during free expansion is express as

S_{f}-S_{i}=nRln(\frac{V_{F}}{V_{I}})\\

Where S is the entropy of the system,

            n is the amount of mole

             R is the gas constant = 8.314 and

           V is the volume occupied at the initial and final stage

since the process is n adiabatic free expansion, the entropy of the system is constant. Hence we can re-write the equation as

S=nRln(\frac{V_{F}}{V_{I}})\\

where the  V_{i}=v\\ and V_{f}=2v+v=3v\\

S=17.28J/k\\ and

R=8.314\\

Now if we substitute in values we arrive at

17.28=(8.314)n*ln(\frac{3v}{v} )\\17.28=(8.314)n*ln(3 )\\17.28=(8.314)n*1.0986\\n=\frac{17.28}{8.314*1.0989}\\n=1.89 mole\\

6 0
3 years ago
Need help with this question. Thirty points.
Anon25 [30]

1)\\\\\text{Kinetic energy,}\\\\E_k = \dfrac 12 mv^2 \\\\\implies m = \dfrac{2E_k}{v^2} = \dfrac{2\times 4500}{30^2}=10~ kg\\ \\2)\\\\\text{Kinetic energy,}\\\\E_k = \dfrac 12mv^2 \\\\\implies v^2 = \dfrac{2E_k}m\\\\\implies v  = \sqrt{\dfrac{2E_k}{m}}=\sqrt{\dfrac{2 \times 320}{\dfrac{20}{9.8}}}= 17.709 ~ ms^{-1}\\\\3)\\\\\text{Kinetic energy,}\\\\E_k=\dfrac 12 mv^2=\dfrac 12 \times 50 \times 10^2=2500 ~J\\\\\\

4)\\\\\text{Potential energy,}\\\\E_p =mgh = 5\times 9.8\times 1.5 = 73.5 ~J

5 0
2 years ago
WHAT STEPS CAN YOU TAKE IF YOU BEEN A VICTIM OF ASSAULT
AfilCa [17]

Answer:

If you have a parental figure or guardian ask them for assistance. Contact a lawyer if you are willing to take action against your attacker.

3 0
3 years ago
Express 75−−√ in the form ab√.
Nana76 [90]
We can write 75 = 25 x 3
and √75 = <span>√ (25 x 3) = </span>√25 x <span>√3 
Now we know that square root of 25 is 5 a 5x5 = 25 
so we can express this in the form of 5</span><span>√3.</span>
8 0
4 years ago
Other questions:
  • What are the effects of noise?​
    15·1 answer
  • A 5.00X10^5 kg rocket is accelerating straight up. Its engines produce 1.250X10^7 N of thrust, and air resistance is 4.50X10^6 N
    14·1 answer
  • A carbon atom can form 4 covalent bonds how many valence electrons does a carbon atom have?
    14·1 answer
  • The maximum lift-to-drag ratio of the World War I Sopwith Camel was 7.7. If the aircraft is in flight at 5000 ft when the engine
    10·1 answer
  • In a molecule of water, how many electrons are shared between each hydrogen atom and an oxygen atom? one two four
    7·2 answers
  • Which of the following is a process that occurs at divergent boundaries?
    10·1 answer
  • A series of evenly timed pulses create a wave that can be described as a _______<br><br> wave.
    15·1 answer
  • a hammer of mass 5 kg travelling at 4 metre per second is a nail directly and does not rebound what is the impulse of the hammer
    9·1 answer
  • Charges that do not transfer
    13·1 answer
  • Quick an answer correct answer!<br><br><br><br> ----------------
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!