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
exis [7]
3 years ago
15

Which of these is not considered a pure substance?

Physics
2 answers:
Ronch [10]3 years ago
8 0
<h3><u>Answer;</u></h3>

<em>A mixture </em>

<h3><u>Explanation;</u></h3>
  • <em><u>A mixture is a substance that is made of two or more substances. </u></em>A mixture may be homogeneous in which substances in the mixture are in the same phase, or may be heterogeneous where substances in the mixture are not in the same phase, such as suspensions and colloids. <u><em>Therefore mixtures are not pure substances.</em></u>
  • A pure substance is a substance that contains atoms or molecules of the same element or compound.<em><u> Examples of pure substances are elements, compounds and also atoms.</u></em>
xxMikexx [17]3 years ago
7 0
A mixture is not a pure substance
You might be interested in
How is tidal energy obtained
yKpoI14uk [10]
Under water turbans that are placed at the above to middle of the ocean they are used to capture kinetic motion
7 0
4 years ago
Mains electricity is an ac supply. Explain the difference between direct and alternating potential difference.
Gennadij [26K]

Direct current (DC) is the flow of electric charge in only one direction. It is the steady state of a constant-voltage circuit. Most well-known applications, however, use a time-varying voltage source. Alternating current (AC) is the flow of electric charge that periodically reverses direction.

<h2><em>#</em><em>L</em><em>E</em><em>T</em><em>S</em><em> </em><em>STUDY</em></h2>

5 0
3 years ago
Yurem is pulling a wagon across the playground with a force of 10 N. He asks Elianna to help. She agrees and pushes the back of
salantis [7]

Answer:

22 N applied force

Explanation: Since they are both pushing the wagon in the same direction the force adds up.

7 0
3 years ago
Read 2 more answers
What is the difference between torque and the moment of a force ​
STatiana [176]

Answer:

Torque Of a Force: If The Force has tendency or Bends The Body about Longitudinal axis of the Body it is Torque. Moment Of a Force :If Force has Tendency to or Rotates the Body about Transverse asis the Body It is Moment .

Explanation:

3 0
3 years ago
A car is driving away from a crosswalk. The formula d = t 2 + 2 t expresses the car's distance from the crosswalk in feet, d , i
Ede4ka [16]

Answer:

1) No, the car does not travel at constant speed.

2) V = 9 ft/s

3) No, the car does not travel at constant speed.

4) V = 5.9 ft/s

Explanation:

In order to know if the car is traveling at constant speed we need to derive the given formula. That way we get speed as a function of time:

V(t) = 2*t + 2   Since the speed depends on time, the speed is not constant at any time.

For the average speed we evaluate the formula for t=2 and t=5:

d(2) = 8 ft     and      d(5) = 35 ft

V_{2-5}=\frac{d(5)-d(2)}{5-2}=9 ft/s

Again, for the average speed we evaluate the formula for t=1.8 and t=2.1:

d(1.8) = 6.84 ft     and      d(2.1) = 8.61 ft

V_{1.8-2.1}=\frac{d(2.1)-d(1.8)}{2.1-1.8}=5.9 ft/s

4 0
3 years ago
Other questions:
  • g A coil formed by wrapping 50 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to th
    5·1 answer
  • If we observe a star over 6 months and obtain a parallax angle (p) for the star, how can we calculate the distance to the star?
    12·2 answers
  • A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another
    14·1 answer
  • I need help on #9 (it's side ways sorry...)
    14·2 answers
  • Which of the following best describes what alveolar are
    15·2 answers
  • Why would an counductor heat up soup?
    9·1 answer
  • The carts are moving on a level, frictionless track. After the collision all three carts stick together. Find the speed of the c
    11·1 answer
  • When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C
    13·2 answers
  • The force in a string which is holding up an apple which type of force is it?​
    13·1 answer
  • At which point would most of the pendulum's potential energy have been transformed into kinetic energy?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!