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
kvasek [131]
3 years ago
12

A 65 N boy sits on a sled weighing 52 N on a horizontal surface. The coefficient of friction between the sled and the snow is 0.

012. What is the magnitude of the frictional force?
Physics
1 answer:
pogonyaev3 years ago
3 0

Answer:

1.40 N

Explanation:

The magnitude of the frictional force is given by:

F=\mu N

where

\mu is the coefficient of friction

N is the magnitude of the normal reaction

The coefficient of friction for this problem is \mu=0.012. The magnitude of the normal reaction is equal to the combined weight of the boy and the sled, because the surface is horizontal, so

N=65 N+52 N=117 N

Therefore, the frictional force is

F=\mu N=(0.012)(117 N)=1.40 N

You might be interested in
Why is the overall charge of the atom neutral or zero?
MrRissso [65]

Answer:

B

Explanation:

this is because the neutrons do not have a charge, the things that have charge in an atom are electrons and protons.

and in the nucleus of an atom, there are protons and neutrons so you can see that A is not the answer

if you see the periodic table, you will know that the number of electrons and protons are equal, so the charges cancel each other out, hence the charge of an atom will be neutral

let me give you a tip which I got from my teacher, never write there is no charge in the atom, this suggests that there is no protons or electrons.

instead, write, the it is neutral

hope it helps if not please report it so that someone else gets to try it out

7 0
3 years ago
Assume that a cloud consists of tiny water droplets suspended (uniformly distributed,
aev [14]
9.8 ms^-2 is acceleration
4 0
3 years ago
What mass has a rest energy of 100J?
alexandr1967 [171]

Answer:

option a is correct

Explanation:

<h2>I hope it's help you ❣️❣️</h2>
6 0
3 years ago
Goodmorning I can’t seem to remember this can someone help me
Bumek [7]

Explanation:

3 cause the triangle method of addition are connected to tips of one vector

6 0
3 years ago
Calculate the frequency if the number of revolutions is 300 and the paired poles are 50.
Andrei [34K]

Answer: A

Explanation: We know that f=p*n

f=50*300=15000 Hz = 15kHz.

Have a great day! <3

3 0
2 years ago
Other questions:
  • The force of repulsion between two like-charged particles will increase if
    12·2 answers
  • What does this equation mean FeDe=FrDr
    7·1 answer
  • My heart strike him to dead.what figure of speech is that?​
    12·1 answer
  • 4) Astronomers use tiny wobbles of distant stars to detect the presence of planets orbiting those stars. This occurs because the
    10·1 answer
  • Boston Red Sox pitcher Roger Clemens could routinely throw a fastball at a horizontal
    13·1 answer
  • HELLPPP ASAPPPP!!!!!
    12·1 answer
  • A ball is shot from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = (7.6 + 6.7 ) m/s, with hor
    5·1 answer
  • At the surface of Venus the average temperature is a balmy 460∘C due to the greenhouse effect (global warming!), the pressure is
    15·1 answer
  • How do you calculate gravity’s pull?
    8·2 answers
  • Consider the following arrangement with a frictionless/massless pulley. Determine the force F required to move block A if the co
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!