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
docker41 [41]
3 years ago
10

The radius of the earth is 6378.1 km what is circumfrence of the earth in metres in standard form how many times can light encir

cle the earth per second
Mathematics
1 answer:
AVprozaik [17]3 years ago
8 0

Answer:

Two things we need to remember:

Speed of light = c = 299,792,458 m / s

This means that the light in one second covers a distance of 299,792,458 m

And for a circle of radius R, the is:

C = 2*pi*R

where:

pi = 3.14

Then if the radius of the earth is 6,378.1 km, then the of the earth is:

C = 2*(3.14)*6,378.1 km = 40,054.468 km

And we know that 1 km = 1000m

Then the circumference of the earth is:

C = (40,054.468*1000) m = 40,054,468 m

Now we need to see how many times the light can encircle the earth per second. (we assume that the light can move in a circular path, this is not really accurate to the reality)

We know that in one second the light can cover a distance of:  299,792,458 m

And the circumference of the earth is: 40,054,468 m

The quotient between these two distances is the number of times that the light can encircle the earth:

N = (299,792,458 m)/(40,054,468 m)  = 7.5

So light could encircle the earth 7.5 times per second.

You might be interested in
The surface area of yringaler prism​
Trava [24]

Answer:

180 cm

Step-by-step explanation:

2(3*10) = 60

3*12 = 24

1/2(12*8) * 2 = 96

formula for a triangle is 1/2 b h

7 0
2 years ago
Se van a transportar sacos que contienen 50 kg de azúcar cada uno, el camión que se va utilizar para el transporte de los sacos
LekaFEV [45]

Function: 50x=8000 (maximum number of packages: 160)

Step-by-step explanation:

In this problem, we have:

C=8 ton = 8000 kg is the capacity of the truck (the amount of mass that can be stored in the truck)

p = 50 kg is the mass of each package that need to be stored in the truck

We can find the number of packages that can be transported as follows: calling this number x, the total mass of x packages is

p\cdot x

This amount should be at most equal to the capacity of the truck, therefore:

px=c

And substituting the numbers,

50x=8000

And solving the equation, we can found the number of packages that can fit into the truck:

x=\frac{8000}{50}=160

Learn more about equations:

brainly.com/question/11306893

brainly.com/question/10387593

#LearnwithBrainly

7 0
3 years ago
What type of number is
WITCHER [35]
Whole number, integer, and rational 
7 0
3 years ago
I need some help please ASAP
Anuta_ua [19.1K]

Answer:

sjsjwhwyegehbddwhshshshhshehsh

6 0
2 years ago
Which is an equation of the line that passes
yan [13]

Answer:

y=1/2x+6

Step-by-step explanation:

Lines that are parallel will have the same slope, so the slope will remain 1/2. However, the y-intercepts can't be the same because then they will overlap each other instead. So we must solve for the missing y-intercept in this case:

y = 1/2x + b

4 = 1/2(-4) + b

4 = -2 + b

6 = b

b = 6

Since the y-intercept is b=6, then the equation of the line that passes through the point (-4,4) and is parallel to the line y=1/2x-4 is y=1/2x+6

3 0
2 years ago
Other questions:
  • What is 10+10/10? Please Help ​
    14·2 answers
  • All books in a store are being discounted by 40%. let x represent the regular price of any book in the store which expression de
    10·1 answer
  • Zap has coordinates z(-1,5) a(1,3) and p(-2,4) a translaton maps point z to z(1,1) find the coordinates of a and p under this tr
    13·1 answer
  • What is the missing step in the given proof? Statement: m∠4 = m∠15 Reason: Substitution Property of Equality Statement: m∠4 + m∠
    10·1 answer
  • Calvin had 30 minutes in time-out. For the first 23 1/3 minutes, Calvin counted spots on the ceiling. For the rest of the time,
    8·2 answers
  • A restaurant's profits for the first three weeks of September are $15,000; $9,300; and $12,000. What are the average profits for
    9·1 answer
  • Suppose a city with population 100,000 has been growing at a rate of ​8% per year. If this rate​ continues, find the population
    7·1 answer
  • I really think it’s B ...Help?
    11·1 answer
  • Find the slope of the line.<br><br> -4,1<br> 1,-2
    13·1 answer
  • HELP HELP PLEASEEEE I NEED TO GET THIS DONE
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!