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
Oksana_A [137]
3 years ago
9

Consider this statement: Air is matter. Which facts best support the statement?

Physics
2 answers:
Zanzabum3 years ago
6 0
A. and C. support that assertion.
yawa3891 [41]3 years ago
4 0
C. air has mass

all matter has mass
You might be interested in
Three boxes in contact rest side-by-side on a smooth, horizontal floor. Their masses are 5.0-kg, 3.0-kg, and 2.0-kg, with the 3.
Ivahew [28]

Answer:

(a)Look at the attached graphic

(b)

(b)-1 Equation 1  : m1= 5kg

       50-F1= 5 *a

(b)-2 Equation 2 : m2= 3kg

        F1-F2= 3 *a

(b)-3 Equation 3 : m3= 2kg

         F2 = 2*a  

(c) F1 =25 N

(d) F2 =10 N

Explanation:

We apply Newton's second law:

∑F = m*a (Formula 1)

∑F : algebraic sum of the forces in Newton (N)

m : mass in kilograms (kg)

a : acceleration in meters over second square (m/s²)

(a) Draw the free-body diagrams for each of the boxes

Look at the attached graphic

(b) Write Newton’s equation for each mass along the horizontal direction.

Data: m1=  5.0-kg ,m2= 3.0-kg , ,m3= 2.0-kg

<em>Look</em> <em>m1 free-body diagram:</em>

∑Fx = m1*a

50-F1= 5 *a Equation 1

<em>Look</em> <em>m2 free-body diagram:</em>

∑Fx = m2*a

F1-F2= 3 *a Equation 2

<em>Look</em> <em>m3 free-body diagram:</em>

∑Fx = m3*a

F2 = 2*a     Equation 3

(c) What magnitude force does the 3.0-kg box exert on the 5.0- kg box?

<em>Look</em> <em>Free body diagram of the mass set</em>

∑Fx = m*a   m= m1+m2+m3= 5+3+2 = 10 kg

50 = 10*a

a= 50/10 = 5 m/s²

We replace a = 5 m/s² in the equation 1:

50-F1= 5 *5

50-25= F1

F1 = 25 N

<em> (d) </em><em>What magnitude force does the 3.0-kg box exert on the 2.0kg box?</em>

We replace a= 5 m/s² in the equation 3

F2 = 2*5 = 10 N

4 0
3 years ago
If an element has an atomic number of 28, how many protons does it have in its nucleus?
kondor19780726 [428]
I think the answer is 28 protons
4 0
3 years ago
Read 2 more answers
A house is wired so that one electrical source comes to a room but many outlets and lights work from that source . when one ligh
Misha Larkins [42]
The room is wired as a parallel circuit
5 0
3 years ago
Suppose you apply a force of 75 N to a 25-kg object. What will the acceleration of the object b? (Remember a=F/m)
Vlada [557]

I would choose the option B.

F = ma

a = 75 / 25 = 3 m/s^2

8 0
2 years ago
Is my answer correct? Please i need to know
Alexeev081 [22]
Yes. Your answer is correct. I hope you do well on the quiz or whatever it is.
5 0
2 years ago
Read 2 more answers
Other questions:
  • A 4.0-μF capacitor that is initially uncharged is connected in series with a 4.0-kΩ resistor and an ideal 17.0-V battery. How mu
    5·1 answer
  • What is the overall function of the<br> excretory system?
    13·2 answers
  • 4. A latch holding a cart in place, hanging high above the ground, breaks and the cart falls. The cart started from rest and is
    7·1 answer
  • A seed can be round when parents are crossed, scientists refer to the first generation of offspring as
    8·1 answer
  • Light refracts when it passes through some objects. What is refraction?
    13·1 answer
  • Which expression has the same dimensions as an expression yielding a value for acceleration (m/s2)? (delta v has units of m/s.)
    9·1 answer
  • Which biome's yearly rainfall mainly evaporates? A. taiga B. desert C. tropical rainforest D. temperate grassland
    12·2 answers
  • Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 18.0 cm and carries a
    9·1 answer
  • Which of the following statements is true? Communicable diseases cannot be transmitted by nonliving objects. Sexually transmitte
    11·2 answers
  • Which example best represents translational kinetic energy? A plucked string guitar. The moving blades of a ceiling fan. A spinn
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!