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
Oksi-84 [34.3K]
3 years ago
9

Which best describes what is made of matter?

Physics
2 answers:
USPshnik [31]3 years ago
8 0
What are the answers
Matter is made of mass

marshall27 [118]3 years ago
3 0
Everything is made of matter
You might be interested in
What is true about energy that is added to a closed system?
Setler [38]

The correct answer is B

6 0
3 years ago
Read 2 more answers
Why do you need to learn about Volcanoes?
nevsk [136]
That they sometimes explode?
5 0
3 years ago
Read 2 more answers
A racquetball strikes a wall with a speed of 30 m/s and rebounds in the opposite direction with a speed of 26 m/s. The collision
Fudgin [204]

Answer:

The average acceleration of the ball during the collision with the wall is a=2,800m/s^{2}

Explanation:

<u>Known Data</u>

We will asume initial speed has a negative direction, v_{i}=-30m/s, final speed has a positive direction, v_{f}=26m/s, \Delta t=20ms=0.020s and mass m_{b}.

<u>Initial momentum</u>

p_{i}=mv_{i}=(-30m/s)(m_{b})=-30m_{b}\ m/s

<u>final momentum</u>

p_{f}=mv_{f}=(26m/s)(m_{b})=26m_{b}\ m/s

<u>Impulse</u>

I=\Delta p=p_{f}-p_{i}=26m_{b}\ m/s-(-30m_{b}\ m/s)=56m_{b}\ m/s

<u>Average Force</u>

F=\frac{\Delta p}{\Delta t} =\frac{56m_{b}\ m/s}{0.020s} =2800m_{b} \ m/s^{2}

<u>Average acceleration</u>

F=ma, so a=\frac{F}{m_{b}}.

Therefore, a=\frac{2800m_{b} \ m/s^{2}}{m_{b}} =2800m/s^{2}

8 0
3 years ago
A dragster starts with zero velocity and completes a 404.5 m (0.2528 mile) run in 4.922 s. If the car had a constant acceleratio
KIM [24]

Answer:

a. a=33.34ms⁻², V=164.4m/s

Explanation:

Since the dragster started with zero velocity, de determine the acceleration using of the equations of motion.

Below are the data given

Distance, s=404.5m,

time taken,t=4.922secs

Using the equation

S=ut+1/2at²

where u is the initial velocity and u=0

Making the acceleration the subject of the formula, we arrive at

a=2s/t²

a=(2*404.5)/4.922²

a=33.34ms⁻².

To determine the velocity, we use

V=u+at

V=0+33.34ms⁻² *4.922sec

V=164.4m/s

5 0
3 years ago
Read 2 more answers
Which of these is the movement of material cause by the interaction between worm and cool material?
mr Goodwill [35]
Convection Current  
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
7 0
3 years ago
Other questions:
  • Which two elements will most likely form an ionic bond? (Click on the periodic table icon to view these elements) krypton and li
    11·2 answers
  • How do energy transformations occur in a hydroelectric plant?
    9·2 answers
  • A quantitative description of kinematics involves using __ to describe the motion
    6·2 answers
  • Which statement describes the magnetic field lines 2 cm
    5·2 answers
  • Use Kepler’s third law and the orbital motion of Earth to determine the mass of the Sun. The average distance between Earth and
    7·2 answers
  • Calculate the angular velocity of the earth in its orbit around the sun.
    9·1 answer
  • How does having a sharp pointed beak limit what foods a bird can eat?
    13·1 answer
  • Rank from most to least, the amount of lift on the following airplane wings: A. Area 1500 m2 with atmospheric pressure differenc
    14·1 answer
  • What is important when it comes to winning
    8·2 answers
  • The heat vaporization for methyl alcohol is 1100 kj/kg. It is 2257 KJ/Kg for water. Thus means that______________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!