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
Zina [86]
2 years ago
9

A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is

2.4 N. The free-body diagram shows the forces acting on the sled.
What is the acceleration of the sled and the normal force acting on it, to the nearest tenth?

Physics
1 answer:
ratelena [41]2 years ago
8 0

Answer:

a = 1.3 m/s2; fn = 63.1 n :)

You might be interested in
The starships of the Solar Federation are marked with the symbol of the Federation, a circle, whereas starships of the Denebian
Llana [10]

Complete question

The complete question is shown on the first uploaded image  

Answer:

The velocity is  v = c* \sqrt{1 -  \frac{1}{n^2} }

Explanation:

From the question we are told that

           a = nb

The length of the minor axis  of  the symbol of the Federation, a circle, seen by the observer at velocity v must be equal to the minor axis(b) of the  Empire's symbol, (an ellipse)

Now this length seen by the observer can be mathematically represented as

        h = t \sqrt{1 - \frac{v^2}{c^2} }

Here t  is the actual length of the major axis of of the  Empire's symbol, (an ellipse)

So t = a = nb

and  b is the length of the minor axis of the symbol of the Federation, (a circle) when seen by an observer at velocity v which from the question must be the length of the minor axis of the of the  Empire's symbol, (an ellipse)

 i.e    h = b

So

    b  =  nb  [\sqrt{1 - \frac{v^2}{c^2} } ]  

     [\frac{1}{n} ]^2 =  1 -  \frac{v^2}{c^2}

      v^2 =c^2 [1- \frac{1}{n^2} ]

       v^2 =c^2 [\frac{n^2 -1}{n^2} ]

        v = c* \sqrt{1 -  \frac{1}{n^2} }

     

     

6 0
3 years ago
PLS HELP THIS IS WORTH 180 PTS!!(PLUS I WILL MARK BRAINIEST IF SOMEONE ANSWERS CORRECTY FIRST)
vazorg [7]

\qquad\qquad\huge\underline{{\sf Answer}}

The correct choice is ~ A

Bikes don't require gasoline for their functioning, so it causes less air pollution.

7 0
2 years ago
Read 2 more answers
1. List the 3 major skeletal cartilages.
il63 [147K]
Hyaline, elastic, & fibrocartilage!
3 0
3 years ago
Read 2 more answers
propane, the gas used in barbeque grills, is made of carbon and hydrogen. Will the atoms that make up propane form covalent bond
nirvana33 [79]
<span>Hydrocarbons are molecules that contain only carbon and hydrogen.</span> Due to carbon's unique bonding patterns, hydrocarbons can have single, double, or triple bonds between the carbon atoms. The names of hydrocarbons with single bonds end in "-ane," those with double bonds end in "-ene," and those with triple bonds end in "-yne". The bonding of hydrocarbons allows them to form rings or chains.
8 0
3 years ago
Read 2 more answers
B c<br>_ - _<br>a b<br>( a=3 b=-5 c=6)​
Pachacha [2.7K]
(-5)/3 - 6/(-5)
You can solve it now :)
7 0
3 years ago
Other questions:
  • How many microphones are in a megaphone?
    10·1 answer
  • We wish to coat flat glass (n = 1.50) with a transparent material (n = 1.20) so that reflection of light at wavelength 529 nm is
    6·1 answer
  • Why are pots and pans made of metals like steel and their handles made of plastic?
    8·1 answer
  • What is a wave that has all the crests and troughs in the same place at the same time?
    9·2 answers
  • A woman is standing at the rim of a nonuniform cylindrical horizontal platform initially at rest. The platform is free to rotate
    15·1 answer
  • Time period of a simple pendulum is measured at Karachi. What change will occur in the time period, if it is measured on mount e
    14·1 answer
  • If you are in a rear-wheel skid, you must release your brakes and turn your steering wheel __________
    12·1 answer
  • Given the mathematical representation of Coulomb’s Law, , where , describe in words the relationship among electric force, charg
    8·1 answer
  • The Chair o
    11·1 answer
  • One Affective way to develop the feeling function in one’s personality is to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!