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
Lena [83]
3 years ago
5

Which change happens when a fan is turned on?

Chemistry
1 answer:
fgiga [73]3 years ago
7 0

Answer:

D. Electrical energy is changed into mechanical energy

Explanation:

When you turn on the fan, the electricity that is given through the power outlet allows the fan to have the available energy to spins the fan blades. By the fan's blades spinning, this is a movement that can be described as mechanical energy.

You might be interested in
A student collected the data shown in the table below during an experiment.
yanalaym [24]

Answer:

An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

Explanation:

A thermometer is a device used to measure temperature. A thermometer must contain a thermometric substance. A thermometric substance is any substance having a particular physical property that changes with temperature.

For all liquid-in-glass thermometers, the property that changes with change in temperature is the height of the liquid. There are two kinds of liquid-in-glass thermometers; mercury-in-glass thermometer and alcohol-in-glass thermometer.

Alcohol-in-glass thermometer measures very low temperatures up to as low as -115°C. If it measures such a low temperature, then it can efficiently measure -80°C hence the answer.

Alcohol-in-glass thermometers have a narrower temperature range than mercury-in-glass thermometer. The later is well adapter for the measurement bof higher tempetures up to 357°C.

4 0
2 years ago
Read 2 more answers
Select all statements that correctly describe hemoglobin and myoglobin structure. a. Molecular oxygen binds irreversibly to the
DIA [1.3K]

Answer:

c. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron.

e. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ( Fe ) (Fe) atom.

f. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer. The heme prosthetic group is entirely buried within myoglobin.

Explanation:

The differences between hemoglobin and myoglobin are most important at the level of quaternary structure. Hemoglobin is a tetramer composed of two each of two types of closely related subunits, alpha and beta. Myoglobin is a monomer (so it doesn't have a quaternary structure at all). Myoglobin binds oxygen more tightly than does hemoglobin. This difference in binding energy reflects the movement of oxygen from the bloodstream to the cells, from hemoglobin to myoglobin.

Myoglobin binds oxygen

The binding of O 2 to myoglobin is a simple equilibrium reaction:

7 0
2 years ago
Are plants and animal pH sensitive?​
Rudiy27

Answer:

Plants and animals are pH sensitive. The growth of plants is dependent on the nature of the soil. If the pH of the soil is greater than 7 and is alkaline, then the plants cannot grow in the soil.

Explanation:

6 0
3 years ago
What is the bond angle in a tetrahedral molecule?
levacccp [35]
109.5

tetrahedral shape:
number of electron pair = 4,
number of bonded pair = 4,
number of lone pair = 0.
7 0
3 years ago
Read 2 more answers
According to the graph, which statement is true?
damaskus [11]
Nitrogen is the one
5 0
3 years ago
Other questions:
  • What is the change of an atom of one element (atom) to an atom of different element called?
    7·2 answers
  • Two groups of students were tested to compare their speed working math problems. Each group was given the same problems. One gro
    12·2 answers
  • What happens first during cellular respiration?
    11·1 answer
  • 2.46 grams of Cu(NO3)2 would contain how many formula units
    15·1 answer
  • Balance the equation Li +CO2+H2O—LiHCO3+H2
    8·1 answer
  • Why does an aluminum horseshoe bend but not break when a blacksmith pounds it into shape with a hammer?
    5·1 answer
  • What is the correct equation for the solubility product when calcium phosphate is dissolved in water
    13·1 answer
  • Convert 15.2 moles of K to atoms of K.
    12·1 answer
  • the countercurrent arrangement of the two limbs of the loop of henle becomes a multiplier of electrolyte concentration due to wh
    10·1 answer
  • Calculate the pH during the titration of 40.00 mL of 0.1000 M HCl with 0.1000 M NaOH solution after the following additions of b
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!