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
Alborosie
3 years ago
6

1. A rock sample has a mass of 16 grams:

Biology
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

(3) 4 cm' and 2.0 g/cm3

Explanation:

Given:

volume= V= 8 cm³

mass= m= 16 g

The density is the mass per volume of a substance, so the density of the rock is:

density= d= 16 g/8 cm³= 2 g/cm³

When we cut the rock in half, we have a half volume and a half mass:

V= 8 cm³/2= 4 cm³

m= 16 g/2= 8 g

But the density is not altered because it is an intrisic property - it does not change with the amount of subtance. Thus, the density of a half rock is:

d = m/V= 8 g/4 cm³= 2 g/cm³

You might be interested in
How does the concept of a<br> dirde relate to cyclins?
Zarrin [17]

Answer:

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

Explanation:

5 0
3 years ago
How does tetanic contraction of muscles help to lift objects heavier than our body weight?
Alik [6]

The tetanic contraction of muscles help to lift objects heavier than our body weight by generating force, overcoming resistance.

<h3>What is muscle?</h3>

Muscle is defined as group of tissue combined together in order to form muscles and muscles are the structure maker of the body it means it provide proper structure to the body.

Muscle contraction has been defined as an action potential that travels along with the nerves to the muscle. The beginning of the muscle contraction occurs with signal generated from the nervous system.There are mainly two types of muscle contraction and the situation occur when a muscle contracts and the change in size takes place.

Therefore, The tetanic contraction of muscles help to lift objects heavier than our body weight by generating force, overcoming resistance.

Learn more about muscle here:

brainly.com/question/11087117

#SPJ1

7 0
1 year ago
Which of these is a major function of RNA? A. to make ribosomes B. to transport genetic information C. to make nucleic acids D.
enot [183]
The major function of RNA is B) To transport genetic information.
7 0
3 years ago
Read 2 more answers
Please help! I’ll give 14 points!!!
Vinil7 [7]
Carbs contain lots of energy, so not A.
They are different carbs with different atom arrangements, so not B.
And carbs only contain 3 elements C, H, and O.
So the answer should be C.
5 0
3 years ago
Read 2 more answers
A similarity between proteins carbohydrates lipids and nucleic acids is that they all
Yuri [45]
They all have CHO; carbon, hydrogen and oxygen
3 0
4 years ago
Other questions:
  • Some inquisitive students found two slugs and wanted to take them to science class. The only container they could find was a use
    13·2 answers
  • How many calories are provided by a food that contains 29 grams of carbohydrate, 6 grams of protein, and 1 gram of fat?
    6·1 answer
  • Molecules that cut dna at specific sequences are known as​
    15·1 answer
  • A 5.0-g egg falls from a 90-cm-high counter onto the floor and breaks. What impulse is exerted by the floor on the egg?
    8·1 answer
  • What do birds like to eat?
    11·2 answers
  • his is word used to describe a characteristic of a hypothesis. It means you are able to experiment to see how two variables may
    7·1 answer
  • many forms of bacteria evolve resistance to antibiotics, drugs that kill bacteria. Based on what you know about how insects evol
    13·1 answer
  • The light areas on the moon are ____.
    7·1 answer
  • Cheetah have evolved a much higher lung capacity,why
    13·2 answers
  • What is DNA and How Does it get into every cell ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!