All categories

3 years ago

What is the kinetic Energy of a camion of 5,000 kg and turn at 100km/h ?

Mathematics

1 answer:

Alex787 [66]3 years ago

6 0

Step-by-step explanation:

Given

mass (m) = 5000 kg

velocity (v) = 100 km/h = 100* 1000/ 3600 = 27.78m/s

Now

Kinetic energy

= 1/2 mv²

= 1/2 * 5000 * 27.78²

= 1929321 joule

You might be interested in

What is .181818... as a fraction?

LekaFEV [45]

181818/1000000. let me know if im wrong! <3

4 0

2 years ago

If we wanted to create a new 90% confidence interval from a different sample for the proportion of those with a two on one date

slava [35]

Answer: 271

Step-by-step explanation:

The formula we use to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

, where $z_{\alpha/2}$ is the two-tailed z-value for significance level of $(\alpha)$

p = prior estimation of the proportion

E = Margin of error.

If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2$

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Margin of error : E= 0.05

Confidence level = 90%

Significance level $\alpha=1-0.90=0.10$

Using z-value table , Two-tailed z-value for significance level of $0.10$

$z_{\alpha/2}=1.645$

Then, the required sample size would be :

$n=0.25(\dfrac{1.645}{0.05})^2$

Simplify,

$n=270.6025\approx271$

Hence, the required minimum sample size =271

3 0

3 years ago

Which of the following is true about the bird population? Please!!!

ElenaW [278]

Answer:

Step-by-step explanation:

if something is multiplied by 1.025 it is increasing by 2.5 percent

5 0

3 years ago

Read 2 more answers

Find y. A. 42–√ B. 4 C. 22–√ D. 83√3

MrMuchimi

Answer:

y=83333728267=९%--#7*$-#-4-!

6 0

2 years ago

Each tablet in a box of allergy medicine weighs 0.3 gram. The total weight of all the tablets is 15 grams. How many tablets are

Hoochie [10]

50, as if 5 of the point 3 tablets equals 1.5, and then multiply that by ten and you get 50.

7 0

3 years ago