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
Pepsi [2]
3 years ago
10

Chemical changes occur as energy is transferred when molecules- - or - to form one or more new substances

Physics
2 answers:
Anastasy [175]3 years ago
7 0

Answer:

change, combine

timurjin [86]3 years ago
4 0

Answer:

Correct options are C. As food is digested, molecule bonds are broken, allowing new molecules to form that can be used by our bodies.

D. Energy stored in organic fuels are used for heat and electricity/ When batteries are connected to a circuit, a reaction occurs inside the cell producing electrical energy.

Explanation:

The breakdown of food leads to the release of chemical energy which was first stored in food. This energy is used to drive necessary functions of the body. A series of chemical reactions are involved in the breakdown of food and changing them into useful components for the cell.

Chemical energy is stored in circuits. When the battery is connected to a circuit, the chemical energy gets transferred into electrical energy.

You might be interested in
Match the following vocabulary words with their definitions:
Ronch [10]

Correct matching:


1 acceleration --> rate of change in velocity, which is the change in velocity divided by the change in time

2. speed --> the rate at which an object changes position when traveling in a certain direction

4. gravity --> force of attraction between all masses in the universe

5. Inertia --> an object´s resistance to a change in motion

3. friction --> force of resistance acting between objects in contact and tending to dampen their motion

6. velocity --> the rate at which an object changes position


6 0
2 years ago
A man travels 15 km east before turning around and heading 5 km west. What is his displacement?
navik [9.2K]

Answer:

10 km East

Displacement is the shortest path between two points.

6 0
3 years ago
Read 2 more answers
water has an index of refraction of 1.33. What is the critical angle for light leaving a pool of water into air? 0 37 90 49
vesna_86 [32]
When light travels from a medium with higher refractive index into a medium with lower refractive index, there is a maximum angle (called critical angle) for which all the light is reflected, so there is no refraction.

The value of the critical angle is given by:
\theta = \arcsin ( \frac{n_2}{n_1} )
when n1 is the refractive index of the first medium, while n2 is the refractive index of the second medium. In our case, n1=1.33 (the water) and n1=1.00 (the air). Putting numbers in, we get
\theta = \arcsin ( \frac{1.00}{1.33} )=49^{\circ}
6 0
3 years ago
If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
dybincka [34]
A and B are equal vectors
7 0
3 years ago
The minute hand of a wall clock measures 16 cm from its tip to the axis about which it rotates. The magnitude and angle of the d
olya-2409 [2.1K]

Answer:

Explanation:

Given

Minute hand length =16 cm

Time at a quarter after the hour to half past i.e. 1 hr 45 min

Angle covered by minute hand in 1 hr is 360 and in 45 minutes 270

|r|=\frac{3\times 2\pi r}{4}=75.408 cm

Angle =270^{\circ}

(c)For the next half hour

Effectively it has covered 2 revolution and a quarter

|r|=\frac{2\pi r}{4}=25.136 cm

angle turned =90^{\circ}

(f)Hour after that

After an hour it again comes back to its original position thus displacement is same =25.136

Angle turned will also be same i.e. 90 ^{\circ}

7 0
3 years ago
Other questions:
  • An is a representation of something in the natural world .
    5·1 answer
  • Which statement best describes a scientific law?
    5·1 answer
  • It is easier to climb up a slanted slope than a vertical slope<br>​
    13·2 answers
  • In young Goodman’s Brown hawthornes reveals his feelings about his Puritan ancestors when
    6·1 answer
  • What is a molecule?
    15·2 answers
  • A 0.017-kg acorn falls from a position in an oak tree that is 18.5 meters above the ground. Calculate the velocity of the acorn
    15·1 answer
  • Describe nucleus (animal) in your own words(20 points)​
    11·1 answer
  • Advantages of writing very large and very small numbers in the terms of power of ten​
    12·2 answers
  • Which purpose does a light bulb serve in a circuit?
    10·2 answers
  • A well is being dug. A 4.5-kg bucket is filled with 28.0 kg of dirt and pulled vertically upward at a constant speed through a d
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!