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
VikaD [51]
3 years ago
5

What is matter made of ?​

Physics
1 answer:
Evgen [1.6K]3 years ago
4 0

Answer:

Matter is made up of atoms.

You might be interested in
The drawing shows a large cube (mass = 28.6 kg) being accelerated across a horizontal frictionless surface by a horizontal force
MrRissso [65]

Answer:

P= 454.11 N

Explanation:

Since P is the only horizontal force acting on the system, it can be defined as the product of the acceleration by the total mass of the system (both cubes).

P= (M+m)*a\\a = \frac{P}{28.6 +4.3}\\a = \frac{P}{32.9}

The friction force between both cubes (F) is defined as the normal force acting on the smaller cube multiplied by the coefficient of static friction. Since both cubes are subject to the same acceleration:

F = m * a*\mu \\F= 4.3*0.710*\frac{P}{32.9}\\F=3.053*\frac{P}{32.9}

In order for the small cube to not slide down, the friction force must equal the weight of the small cube:

3.053*\frac{P}{32.9} = 4.3 * g\\\\P = \frac{4.3*9.8*32.9}{3.053} \\P= 454.11 N

The smallest magnitude that P can have in order to keep the small cube from sliding downward is 454.11 N

8 0
3 years ago
Which one of the following does not accurately describe the universal gravitational law? Question 10 options: A) Gravitational f
just olya [345]

Answer:

Choice C seems to be the right answer.

Explanation:

5 0
3 years ago
Read 2 more answers
A crucial characteristic of turbines in tidal generators is that _____.
Mila [183]
<span>The blades should turn in two directions.</span>
4 0
3 years ago
Read 2 more answers
True or false the refraction of a wave is how many wavelengths pass a fixed point each second
Ksenya-84 [330]
False. That description fits the wave's 'frequency'. 
It has nothing to do with refraction.
8 0
3 years ago
Read 2 more answers
How to calculate the angle of a resultant<br>​
stiv31 [10]

Answer:

The direction angle θ of the resultant in the Polar (positive) specification is then θ = α + 60°. The Law of Cosines is used to calculate the magnitude (r) and the Law of Sines is used to calculate the angle (α).

3 0
3 years ago
Other questions:
  • A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground, and it rebounds with an upw
    14·1 answer
  • The Bohr model was determined ultimately to be flawed. Knowing that "opposites attract (and 'likes' repel)," can you think of an
    12·1 answer
  • Why would an egg break immediately when it hits the ground?
    7·2 answers
  • An object starts from rest, and accelerates at 2m/s2 for 10s. How far has it gone in that time
    10·1 answer
  • Why would scientists call solids and liquids a condensed phase of matter?
    8·1 answer
  • You are writing a report about space travel. Where would be the best place to find information? (2 points)
    10·2 answers
  • Can you give me an example of how sound passes through a solid?please help
    8·2 answers
  • A body of mass 36 g moves with SHM of amplitude A = 13 cm and period T = 12 s. At
    7·1 answer
  • Select the correct answer?
    15·1 answer
  • Why was the government in giving support to addressing and researching the HIV epidemic ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!