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
Neko [114]
3 years ago
8

Which of the following statements is false? A. Two or more atoms combine chemically to form a molecule. B. Two or more different

substances combine physically to form a mixture. C. Two or more different atoms combine chemically to form an element. D. Two or more elements combine chemically to form a compound.
Physics
1 answer:
SCORPION-xisa [38]3 years ago
7 0
<span>C. Two or more different atoms combine chemically to form an element.</span>
You might be interested in
17. A 25 kg block is initially at rest on a rough, horizontal surface. A horizontal force of 75 N is required to set
lapo4ka [179]

Answer:

0.30581

0.24464

Explanation:

\mu_s = Coefficient of static friction

\mu_k = Coefficient of kinetic friction

F_f = 75 N

F_k = 60 N

Normal force

F_n=mg\\\Rightarrow F_n=25\times 9.81\\\Rightarrow F_n=245.25\ N

Frictional force

F_f=\mu_sF_n\\\Rightarrow \mu_s=\frac{F_f}{F_n}\\\Rightarrow \mu_s=\frac{75}{245.25}\\\Rightarrow \mu_s=0.30581

The coefficient of static friction is 0.30581

Kinetic force

F_k=\mu_kF_n\\\Rightarrow \mu_k=\frac{F_k}{F_n}\\\Rightarrow \mu_s=\frac{60}{245.25}\\\Rightarrow \mu_s=0.24464

The coefficient of kinetic friction is 0.24464

4 0
3 years ago
What kind of potential energy allows you to throw a ball
Aleks [24]
Force.................
3 0
3 years ago
Read 2 more answers
Please help me I am desperate this is due now
elena55 [62]

Answer:

Distance travelled is 7 meters and the displacement is 3 meters

7 0
3 years ago
Read 2 more answers
Please help! i'm horrible at this
frez [133]

Answer:

a = Δv/t = (vf - vi)/t = (0 - 5)/4 = -1.25 m/s²

Explanation:

You may or may not need the negative sign, depending on how the question designer was thinking about the problem.

4 0
3 years ago
A particle with charge -40.0nC is on the x axis at the point with coordinate x=0 . A second particle, with charge -20.0 nC , is
ICE Princess25 [194]

A particle with charge -40.0nC is on the x axis at the point with coordinate x=0 . A second particle, with charge -20.0 nC, is on the x axis at x=0.500 m.

No, there is no point at a finite distance where the electric potential is zero.

Hence, Option D) is correct.

What is electric potential?

Electric potential is the capacity for doing work. In the electrical case, a charge will exert a force on some other charge and the potential energy arises. For example, if a positive charge Q is fixed at some point in space, any other positive charge when brought close to it will experience a repulsive force and will therefore have potential energy.

It is also defined as the amount of work required to move a unit charge from a reference point to a specific point against an electric field.

To learn more about electric potential, refer to:

brainly.com/question/15764612

#SPJ4

4 0
1 year ago
Other questions:
  • What is the name for the clockwise deflection of air in the cells near the poles?
    5·1 answer
  • What causes a ray of white light to split into seven colors when passed through a prism? A. refraction B. reflection C. filterin
    7·2 answers
  • darwins explanation for why different species exist is best described as a law, theory, inquiry, hypothesis?
    11·1 answer
  • Which of the following BEST describes an object velocity during free fall?
    8·1 answer
  • The total length of the cord is L = 7.00 m, the mass of the cord is m = 7.00 g, the mass of the hanging object is M = 2.50 kg, a
    6·1 answer
  • How long is the racetrack if it takes a racecar 3.4 s travelling at 75 m/s to finish?​
    15·1 answer
  • Most houses in the countries that experience winter have air heaters installed.These heaters are usually installed near the floo
    12·1 answer
  • Plsss answer this plss​
    10·1 answer
  • Please help me
    8·2 answers
  • A car moving at a speed of 20 m/s has a kinetic energy of 200,000 J from that motion. What is the car's mass?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!