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
katen-ka-za [31]
3 years ago
10

Is my answer correct or no?

Physics
2 answers:
irinina [24]3 years ago
8 0
 No your answer is incorrect. Would you like the correct one?
OLEGan [10]3 years ago
8 0
Your answer is incorrect would you like me to help you or do you think you can figure it out on your own
You might be interested in
Need help with 1 A and 1 B
Bingel [31]
I hate this class .....
8 0
3 years ago
Why is the Mid-Atlantic Ridge an ideal place for SWARM to collect electrical conductivity data?
ElenaW [278]

Answer: Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where new ocean floor is created as the plates spread apart. Thus the mid-ocean ridge is also known as a "spreading center" or a "divergent plate boundary." The plates spread apart at rates of 1 cm to 20 cm per year.

3 0
2 years ago
Read 2 more answers
One horse is pulling a 755 kg sled straight ahead applying a force of 1988 N. If the acceleration of the sled is 1.36 m/s2, what
Inessa [10]

Answer:

The coefficient of kinetic friction is 0.13

Explanation:

Newton's second law states that the acceleration of an object is proportional to the net force on it, the factor of proportionality is the mass. So, we can express that law mathematically as:

\sum\overrightarrow{F}=m\overrightarrow{a} (1)

With F the net force, m the mass and a the acceleration of the object. In our case we're interested on what's happening to the sled, then we have to analyze the forces on it, those forces are the weight and the normal force on the vertical direction and the pulling force and frictional force in the horizontal direction. So, because (1) is a vector equation we can express that in their vertical (y) and horizontal (x) components:

F_y=ma_y (2)

F_x=ma_x (3)

On y we have that the acceleration is zero because the sled is not moving upward or downward, remember that the net force on y is the weight (W) pointing downward and the normal force pointing upward:

F_y=W+n=0

Following the convention that positive is upward and negative downward, W=mg=(755)(-9.81):

F_y=(755)(-9.81)+n=0

n=7406.55 N (4)

Now on the x direction we have the sum of the forces is the pulling force (T) and friction force (f)

F_x=F+f=ma_x

Choosing the direction where the horse is pulling F=1988N and the acceleration should be positive too, then:

1988+f=m(1.36)

f=(755)(1.36)-1988=-961.2 N

The negative sign means it's in the opposite direction the horse is pulling

The frictional force is related with the coefficient of kinetic friction in the next way:

|f|=\mu_k n

with μk the coefficient of kinetic friction, and n the normal force that we already found on (4), so we simply solve the last equation for μk:

\mu_k=\frac{|f|}{n}=\frac{961.2}{7406.55}=0.13

4 0
3 years ago
Which statements about Earth’s core help explain Earth’s magnetic field? Check all that apply.
nalin [4]
<span>The inner core is liquid and moving.</span>
7 0
3 years ago
Read 2 more answers
A ball of radius 0.220 m rolls along a horizontal table top with a constant linear speed of 3.70 m/s.?
4vir4ik [10]
<span>16.82 x 0.04 = 0.67 rad
I hope I helped if you really need I can explain to you how I got that answer but Thats correct im sorry it took 2 days for me to find this answer but if you or anybody else still needs the answer for this question here it is :) have a fantastic day guys Spring Break is coming up soon :)</span>
6 0
2 years ago
Other questions:
  • What happens when velocity and acceleration are at right angles to each other
    6·1 answer
  • A wave has a wavelength of 10mm and a frequency of 5 hz what is the speed?
    10·2 answers
  • Pail of WaterSuppose you wish to whirl a pail full of water in a vertical circle at a constant speed without spilling any of its
    14·1 answer
  • a uniform electric field E=15 N/C points downwards. A particle with charge q=-0.15 C is placed in the electric field. What is th
    7·1 answer
  • Why can the Hubble space telescope make very detailed images in visible light
    5·1 answer
  • Explain the law of conservation of energy then give an example that shows the slot to be true in your example explain where ther
    12·1 answer
  • How to calculate motion​
    8·2 answers
  • What is power the quotient of?
    7·1 answer
  • My experience as a learner
    8·1 answer
  • PLEASE HELP! WILL GIVE BRANILIEST TO FIRST REAL ANSWER If one marble is rolling three times as fast as a second marble of the sa
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!