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
professor190 [17]
3 years ago
9

Fifteen grams of a liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic

after the change
Biology
2 answers:
Vilka [71]3 years ago
5 0
Its the same weight.
liberstina [14]3 years ago
4 0

Answer:

It will still weigh the same, that is, 15 grams.

Explanation:

On the basis of the law of conservation of mass, mass can neither be destroyed nor be created, however, it can get changed from one form to another. Thus, during freezing of the liquid plastic, its molecules come close to each other, and as a consequence, it get modifies into solid-state.  

However, it will still be of similar weight as there will be no influence on its mass. Therefore, it can be said that plastic after getting transformed will still weigh fifteen grams.  

You might be interested in
Adolescent or Infancy had rapid growth? Explain
Mkey [24]
Infancy, you grow from microscopic to a baby size in 9 months which is the fastest you ever grow.
8 0
2 years ago
C. At what height would the pomegranate have the same potential energy as the melon? (1 point)
zvonat [6]

Answer:

Given a set of assumptions which are given below, the height at which the pomegranate will have the same potential energy as the melon is 39.19 meters.

Explanation:

Gravitational Potential Energy refers to the acquired innate energy of an object due to its elevation above the surface of the earth.

This energy is the result of gravitational pull or force acting on the object.

In other to determine at what height a pomegranate and a watermelon will have the same potential energy we need to know the other factors in play.

Gravitational Potential Energy (E<em>p</em>)= <em>mgh</em>

Where m = Mass (kg)

            g  =  gravitational field strength (N/kg)

            h  = height (m)

           E<em>p </em>= gravitational potential energy ( <em>j </em>)

Let us assume that the

  • An average pomegranate weighs about 0.255146Kg
  • An average melon weighs about  10Kg
  • g is always constant at 9.8 N/kg

Note that melons weight much more than pomegranates.

   

So, let's calculate for the E<em>p </em>of the melon at the height of  1 meter

E<em>p</em> = 10 x 9.8 X 1 = 98<em>j</em>  

Using the above assumptions, we do a goal seek using Microsoft Excel. Please see the attached image.

Calculation shows that the Height (h/Meters) at which the E<em>p </em>of both veggies become equal is 39.19m

This can be verified by inserting the figure and multiplying it. It can also be calculated as follows:

That is

E<em>p = 98j</em>

<em>m = </em>0.255146kg

<em>g= 9.8kg</em>

<em>h=  ?</em>

98= 0.255146 x 9.8 x <em>h</em>

98 = 2.5004308<em>h (we divide both sides by </em>2.5004308 to make h the subject matter<em>)</em>

<em>h = 98 / </em>2.5004308

<em>h = 39.1932462198</em>

Which is approximately 39.19

4 0
2 years ago
How secretion and excretion both are different? Explain in simple language.
gtnhenbr [62]

Answer:

Excretion is the removal of material from one living thing, for example. Humans excrete tears, sweat, carbon dioxide etc.

Secretion is the movement of material from one point to another, for example.  Humans secrete enzymes, hormones, saliva etc.

Basically in summary excretion is the removal of physical material and secretion is the movement of biological materials from one point to another.


I hope this was clear enough lol

5 0
3 years ago
HELP ASAP!!!
Margarita [4]
I think the answer should be True! Because it had the distance from to the sun and Earth is only one astronomical unit.

Hope it helped!
6 0
3 years ago
Read 2 more answers
How do auroras form??
Nimfa-mama [501]
<span>The aurora borealis (northern lights) form when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. These collisions result in countless little bursts of light, called photons, which make up the aurora.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which role do gametes play in reproduction?
    14·2 answers
  • In industrialized nations, childhood diseases have declined dramatically during the past half-century, largely as a result of
    9·1 answer
  • Sarah has experienced brain damage making it difficult for her to understand spatial layout. which area of her brain has most li
    15·1 answer
  • According to cell theory, which are made of cells? Check all that apply.
    8·2 answers
  • Why would DNA need to replicate ? Two reasons
    6·1 answer
  • Which domain is composed of unicellular prokaryotes that have cell walls that do not contain peptidogcylan
    5·1 answer
  • Which of the two systems works 24/7 and protects you regardless of the organism it encounters?
    13·1 answer
  • Please help!
    6·1 answer
  • A small bird gathers pollen and nectar for food, but at the same time is
    8·1 answer
  • Which stains are used to visualize structures in the bacterial cell wall
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!