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
igomit [66]
3 years ago
10

You place a drop of blue food coloring in a cup of cold water and another drop of food coloring in a cup of hot water. Which obs

ervation is correct and why? A The food coloring in the hot water will spread more slowly than in the cold water because water molecules move more slowly when hot. B The food coloring in the hot water will spread more quickly than in the cold water because water molecules move more quickly when hot. C The food coloring in the cold water will spread more quickly than in the hot water because water molecules move more quickly when cold. D The food coloring in the cold water will spread at the same rate at the food coloring in the hot water because water molecules at any temperature move at the same rate.
Physics
1 answer:
lapo4ka [179]3 years ago
6 0

Answer:

B food coloring will move quicker in hot water because the molecules move faster when they are hot

Explanation:

SCIENCE! aaaaand my physics text book

You might be interested in
1 point
Trava [24]

Answer:

Their number should increase

Explanation:

The photoelectric effect is a phenomenon that causes the ejection of electrons from that metal as light shined onto a metal surface. Only certain frequencies of light can cause the ejection of electrons. However, if the frequency of the incident light is too low then no electrons were ejected even if the intensity of the light was very high. If the frequency of the light was higher then electrons were able to be ejected from the metal surface even if the intensity of the light was very low.

According to the accepted wave theory, light of any frequency will cause electrons to be emitted. Kinetic energy emitted by the electrons depends upon the intensity of light.

According to the accepted wave theory, number of electrons being ejected by the metal should increase

5 0
3 years ago
Explain a compression and a refraction of a sound wave traveling though the air
KengaRu [80]
Hmm this is difficult you need to go to answers.con and it come out cya :D
7 0
3 years ago
Nvm i got the answer but <br> free points
faust18 [17]

Answer:

thank you 谢谢

Explanation:

8 0
3 years ago
Read 2 more answers
A person is pulling their 20 kg luggage using the luggage handle. The handle is at an angle of 56 degrees above the horizontal.
rusak2 [61]

Answer:

The answer to your question is:  a = 1.99 m/s²

Explanation:

Data

mass = 20 kg

angle = 56°

Force = 71 N

horizontal acceleration = ?

Process

Find the horizontal force

                                           cos Ф = adjacent side / hypotenuse

                                          adjacent side = hypotenuse x cosФ

                                          adjacent side = 71 x cos 56

                                          a.s. = 39.70 N

Newton's second law

                                  F = ma

                                  a = F/m

                                 a = 39.7 / 20

                                  a = 1.99 m/s²

4 0
3 years ago
A trough is filled with a liquid of density 860 kg/m3. The ends of the trough are equilateral triangles with sides 14 m long and
7nadin3 [17]

Answer:

2.89 x 10^6 N

Explanation:

The explanation is shown in the picture attached

8 0
3 years ago
Other questions:
  • Sick person develops a fever physical or chemical
    12·1 answer
  • A Submerged Ball Part A A ball of mass mb and volume V is lowered on a string into a fluid of density Pi (Figure 1) Assume that
    8·1 answer
  • A 260-m length of wire stretches between two towers and carries a 115-a current. determine the magnitude of the force on the wir
    5·1 answer
  • The military uses a special instrument to detect this type of wave to help improve night vision.
    8·2 answers
  • When water is boiled at a pressure of 2.00 atm, the heat of vaporization is 2.20×106J/kg2.20×10
    13·1 answer
  • In a coal power plant, coal is burned to heat steam, which spins a turbine. What energy conversion is happening in a coal power
    8·2 answers
  • A rigid tank of air is cooled (temperature decreased). The volume has to remain constant because it is a rigid tank. The air pre
    8·2 answers
  • Calculate the parallel component of the weight of the object on the inclined plane below.
    7·1 answer
  • Which statements best describe the second stage of cellular respiration? Check all that apply.
    13·2 answers
  • A diamond sparkles more than a glass cut to similar shapes,why?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!