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
Vitek1552 [10]
3 years ago
14

A box is pushed across a horizontal table at constant speed. Of the forces on it, which pair do we know are equal in magnitude b

ecause of Newton's third law? The force of kinetic friction on the box and the force applied to the box by the one pushing it. None of these are interaction pairs. Normal force on the box and the normal force on the table by the box. Normal force on the box and the weight of the box.
Physics
1 answer:
PtichkaEL [24]3 years ago
5 0

Answer:

Normal force on the box and the normal force on the table by the box.

Explanation:

a)The force of kinetic friction on the box and the force applied to the box by the one pushing it:  This pair of forces is compared by Newton's second law.

b)None of these are interaction pairs: If there is a couple of interaction

c)Normal force on the box and the normal force on the table by the box: We know that this pair of forces are equal in magnitude due to Newton's third law, or, the principle of action and reaction, which establishes that when two bodies interact, equal forces and opposite senses appear in each of them.

When a body A exerts a force on another body B, B will react by exerting another force on A of the same modulus and direction although in the opposite direction. The first of the forces is called the action force and the second reaction force :

FAB = - FBA

FAB: It is the force of action of A on B .

FBA: It is the reaction force of B on A

d)Normal force on the box and the weight of the box: This pair of forces is compared by Newton's second law.

You might be interested in
A man has a mass of 110kg . what is his weight?
Alisiya [41]
<span>1078 kgm / s would be the answer I hope this helps!!!</span>
5 0
3 years ago
Read 2 more answers
Toy car in a science experiment covers 1.6 meters in half a second. If a the car travels at a steady speed, how far will it go i
Tanzania [10]
The answer is D. 32 m.

The simple equation that connects speed (v), time (t), and distance (d) can be expressed as:
v= \frac{d}{t}         ⇒ d=v*t

It is given:
v =  \frac{1.6m}{0.5s} = \frac{1.6m*2}{0.5s*2}= \frac{3.2m}{1s}  = 3.2 m/s
t = 10 s
d = ?

So:
d= v*t=3.2m/s*10s = 32m
3 0
2 years ago
Infer why the output force exerted by a rake must be less than input force?
adell [148]
<h3><u>Answer and Explanation</u>;</h3>
  • input force refers to the force exerted on a machine, also known as the effort, while the output force is the force machines produce or the Load. The ratio of output force to input force gives the mechanical advantage of a simple machine
  • <em><u>The output force exerted by the rake must be less than the input force because one has to use force while raking. The force used to move the rake is the input force. </u></em>
  • <em><u>The rake is not going to be able to convert all of the input force into output force, the force the rake applies to move the leaves, because of friction.</u></em>
5 0
3 years ago
A 71.80 kg person holding a steel ball stands motionless on a frozen lake.
Mars2501 [29]

Answer: 3.08 !! <3

Explanation: im sorry but im not sure y i just got the answer wrong and this is wut it told me was right :)

6 0
3 years ago
Read 2 more answers
Which one is the greatest?
kipiarov [429]

Answer:

18kg dog walking

Explanation:

the dog walking has more inertia than the boy and girl because its gravity is pulling it down to the earth

6 0
3 years ago
Other questions:
  • A particular star is white. Another star that is much hotter is expected to be ______.
    7·2 answers
  • Help plzzzzzzzzzzzzzzzz!
    7·1 answer
  • After watching a show about submarines, Jamil wants to learn more about the oceans. Which question could be answered through sci
    6·2 answers
  • A 25kg mass is suspended at the end of a horizontal, massless rope that extends from a wall on the left and from the end of a se
    5·2 answers
  • What is the difference between magnitude and intensity
    9·1 answer
  • A
    9·1 answer
  • 1. Do you think that hand signals are important in officiating games? why?​
    9·1 answer
  • A uniformly charged sphere has a total charge of 300uc and a radius of 8cm. Find the electric field density at A point 16cm from
    8·1 answer
  • Calculate the mass (in g) of 346 cm³ of polythene. The density of polythene is 0.95 g/cm³. Give your answer to 2 decimal places.
    10·1 answer
  • Draw a diagram to show what happens to plane waves when they strike a flat reflector placed at 45° to their direction of travel.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!