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
almond37 [142]
3 years ago
14

A sphere has a mass of 8.5 kg and a radius of 10cm. How much work is it necessary to do on the ball to get it to a speed of 6.0m

/s?
Physics
1 answer:
LenaWriter [7]3 years ago
5 0

Answer:

<h2>153J</h2>

Explanation:

Step one:

given data

mass m= 8.5kg

radius r= 10cm in meters = 0.01m

velocity v= 6m/s

The work done will be the same as the energy possessed by the sphere at such speed

Required

the work one in Joules

we know that

KE=1/2mv^2

KE=1/2*8.5*6^2

KE= 1/2*8.5*36

KE=306/2

KE=153J

You might be interested in
What is the difference between a data table and a graph?
alexandr402 [8]

At the same time, however, you get less detail or less precision in a chart or graph than you do in the table. Imagine the difference between a table of sales figures for a ten-year period and a line graph for that same data. You get a better sense of the overall trend in the graph but not the precise dollar amount.

3 0
3 years ago
Read 2 more answers
If you are describing the displacement of an object with respect to a reference point, you should use
Leya [2.2K]
You should use B. a vector
6 0
3 years ago
A race car is on a track has a velocity of 200 m/s. 15 seconds later the driver notices that he is going 350 m/s. What is his ac
shtirl [24]

Answer:

initial velocity (u) = 200m/s

final velocity (v) = 350 m/s

time (t) = 15s

acceleration (a) = ?

NOW,

a=v-u/t

a= 350-200/15

a= 50/15

a= 3.3333

Explanation:

it's too easy just u need to understand the question . and go according to it's content .

main thing to memorize is it's simple formula.

I HAVE SOLVE THIS QNA. IN VERY

SIMPLE AND UNDERSTANDABLE FORM.

I høpë u hađ uņdērstøöď ťhìs şølutîóñ

:verý ×wəłł.

8 0
3 years ago
It takes 25N or force to drag a box along the floor at a constant speed. If the coefficient of friction is .3, what is the mass
Nataliya [291]

The mass of the box is 8.5 kg.

<h3>What is mass?</h3>

Mass can be defined as the quantity of matter contained in a body.

To calculate the mass of the box, we use the formula

Formula:

  • F = mgμ............. Equation 1

Where:

  • F = Force
  • m = mass of the box
  • g = acceleration due to gravity
  • μ = coefficient of friction

Make m the subject of the equation

  • m = F/gμ..................... Equation 2

From the question,

Given:

  • F = 25 N
  • g = 9.8 m/s²
  • μ = 0.3

Substitute these values into equation 2

  • m = 25/(0.3×9.8)
  • m = 25/2.94
  • m = 8.5 kg

Hence, the mass of the box is 8.5 kg.

Learn more about mass here: brainly.com/question/26150306

#SPJ1

6 0
2 years ago
PLEASE ANSWER, I HAVE 5 MINUTES!!!!
zmey [24]

Answer:

<em>I HAD THE SAME QUESTION AND SEARCHED IT UP AND GOT THE ANSWERS.</em>

Explanation:

3 0
3 years ago
Other questions:
  • What are two real life examples that resemble peristalsis?
    9·1 answer
  • Name at least two clouds types in each level, with their characteristics:
    7·2 answers
  • What is the required force to bring a 1550 kg vehicle moving at 32 m/s to a stop in a distance of 45 m?
    11·1 answer
  • During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between
    7·2 answers
  • What happens when a substance undergoes a physical change?
    11·2 answers
  • Please help, it's super easy!
    5·2 answers
  • French jrnf;kwnb;vnkj2wert
    13·1 answer
  • Which is an example of a non-contact force?
    8·1 answer
  • You should practice all new exercises without weight resistance first?<br> A. True <br> B. False
    6·2 answers
  • Help me with this please :)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!