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
ASHA 777 [7]
4 years ago
6

If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3

Mathematics
1 answer:
RUDIKE [14]4 years ago
6 0

Answer:

The value of v is ± 22.729.

Step-by-step explanation:

Let be a=m\cdot g -\frac{k\cdot v^{2}}{m}, the variable v is now cleared:

\frac{k\cdot v^{2}}{m}=m\cdot g -a

k\cdot v^{2} = m^{2}\cdot g- m\cdot a

v^{2} = \frac{m^{2}\cdot g - m\cdot a}{k}

v =\pm \sqrt{\frac{m^{2}\cdot g-m\cdot a}{k} }

If a = 2.8, m=12, g = 9.8 and k = \frac{8}{3}, the value of v is:

v=\pm \sqrt{\frac{(12)^{2}\cdot (9.8)-(12)\cdot (2.8)}{\frac{8}{3} } }

v \approx \pm 22.729

The value of v is ± 22.729.

You might be interested in
How do you rationalise this surd?
Ksivusya [100]

\frac{1 +  \sqrt{3} }{ \sqrt{2} }   \times  \frac{ \sqrt{2} }{ \sqrt{2} } =  \frac{ \sqrt{2}  +  \sqrt{6}  }{2}
here you go
5 0
3 years ago
Read 2 more answers
Nanna's Italian Restaurant has collected data about customer sauce orders. It calculated that P(marinara) = 0.64, P(alfredo) = 0
abruzzese [7]
To answer this question, apply this formula <span>P(m and a) = P(m) + P(a) - P(m or a). Where m stands for marinara and a stands for alfredo.

</span><span>P(m and a) = P(m) + P(a) - P(m or a)
</span><span>P(m and a) = 0.64 + 0.56 - 0.89
</span><span>P(m and a) = 0.31</span>
5 0
3 years ago
Graph the line with slope −2 passing through the point , 5−1.
Allisa [31]

<u>Answer:</u>

<u>y+1=-2(x-5)</u> - Point Slope Form

<u>y=-2x+9</u> - Slope Intercept Form

<u></u>

Step-by-step explanation:

We will be using point-slope formula, as attached in a picture below.

1) Plug in the slope -2 as "m" in point slope form, along with the two points, (5, -1)

<u>y+1=-2(x-5)</u>

2) Next, if you want to put the line into slope-intercept form, you will need to distribute -2 to x and -5:

y+1=-2x+10

3) Now, subtract 1 from both sides:

<u>y=-2x+9</u>

6 0
3 years ago
1) Each student has 2 shoes. How many shoes are there for 8 students?
Murrr4er [49]
8x2= 16

16 shoes are there for 8 students
8 0
2 years ago
Read 2 more answers
PLEASE HELPPPPPP
N76 [4]

Answer:

D

Step-by-step explanation:

in the question the scale factor is 4 so that means it is a dilation (getting larger) because the scale factor is >1

7 0
2 years ago
Read 2 more answers
Other questions:
  • Explain the effect that "h" has on the function f(x) = a(x - h)2 + k.
    6·1 answer
  • What is 10.5% of 238?
    15·2 answers
  • A computer programmer charges $45 an hour for a coding projects plus a start-up fee of $150.
    11·1 answer
  • WILL GIVE BRAINLEIST NEED TO TURN IN BY 9 P.M. PLS HURRY SUPER EASY.
    11·1 answer
  • Rafael can run one mile in 8 minutes if he keeps this rate up how long will it take him to run 5 miles?
    11·2 answers
  • Hi, I am doing math at home, and I was confused on this problem. Thank you for helping.
    6·1 answer
  • Given the function f(x) = 7x² – 3x + 6. Calculate the following values:
    15·1 answer
  • What is the area of the figure? Answer in decimal form to the nearest hundredth.
    7·2 answers
  • 2. Circle C, has center (0,0) and radius 2.
    14·1 answer
  • Cost of Bikes ($) at Bike Shop
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!