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
Ann [662]
1 year ago
8

A set of twins, Andrea and Courtney, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a spaceship th

at travels away from Earth at a speed of 0.60c for 10 years (as measured by Courtney). At the end of the trip, Courtney is 20 years old. How old is Andrea
Mathematics
1 answer:
SVETLANKA909090 [29]1 year ago
3 0

The initial age of 10 years and the spaceship speed of 0.60•c, gives the Andrea's age at the end of the trip as 18 years.

<h3>How can Andrea's new age be calculated?</h3>

The time dilation using the Lorentz transformation formula is presented as follows;

t' =  \frac{t}{ \sqrt{1 -  \frac{ {v}^{2} }{ {c}^{2} } } }

From the question, we have;

The spaceship's speed, <em>v</em> = 0.6•c

∆t = Rest frame, Courtney's time, change = 10 years

Therefore;

\delta t' =\delta t \times  \sqrt{1 -  \frac{ {(0.6 \cdot c)}^{2} }{ {c}^{2} } } = 8

The time that elapses as measured by Andrea = 8 years

Andrea's age, <em>A</em>, at the end of the trip is therefore;

A = 10 years + 8 years = 18 years

Learn more about the Lorentz transformation formula here:

brainly.com/question/15544452

#SPJ1

You might be interested in
They communicative property applies to subtraction true or false PLEASE HELP ME I’M STRUGGLING
ValentinkaMS [17]

Answer:

True

Step-by-step explanation:

5 0
3 years ago
Pls help meeeeeeeee will give BRAINLIEST
inn [45]

Answer:

It's d) 4r+13b+16

Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Read 2 more answers
If the number of professors in a college is P and the number of students is S, and there are 19 times as many students as profes
morpeh [17]

Answer:

S =19P\\S-19P = 0                              

Step-by-step explanation:

We are given the following in the question:

Let P be the number of professor and S be the student in a college.

According to the question:

There are 19 times as many students as professors.

We have to write an equation to show the given relationship between professors and students.

S =19P\\S-19P = 0

The above situation is the situation that represents the given relationship.

5 0
2 years ago
Please help! It will be appreciated!
AysviL [449]
It’s d, looks like you got it already! With ratios, just pay attention to not only the numbers but order of the words as well, so you can be sure the ratio follows the problem.
8 0
3 years ago
Read 2 more answers
What is the experamental probability that the coin lands on heads?
sammy [17]

Answer:

The experamental probability that the coin lands on head is 50 %

Step-by-step explanation:

Given:

Experiment:

A coin is Toss

Let the Sample Space be 'S' that is total number of outcomes for a coin has been tossed = { Head, Tail }

∴ n ( S ) =  2

Let A be the event of getting a Head on tossing a coin i.e  { Head }

∴ n( A ) = 1

Now,

\textrm{Probability} =\frac{\textrm{outcomes for the experiment}}{\textrm{total number of outcomes}}

Substituting the values we get

P(A) = \frac{n(A)}{n(S)} \\\\P(A) = \frac{1}{2} \\\\P(A) = 0.5\\\\P(A) = 50\%

The experamental probability that the coin lands on head is 50 %

5 0
3 years ago
Other questions:
  • A college student takes out a $7,500 loan from a bank. What will the balance of the loan be after one year (assuming the student
    11·1 answer
  • How to combine fractions 5b/4a+b/3a-3b/a
    9·1 answer
  • Give me the answer and the steps
    15·2 answers
  • I will give brainlyest
    8·1 answer
  • Joseph's lunch at a restaurant costs $13.00, without tax. He leaves the waiter a tip of 17% of the cost of the lunch, without
    14·2 answers
  • I NEED THIS FAST !!!<br> simplify 3^2 . 3^4 . 3^6
    14·1 answer
  • According to a recent survey, 73% of all customers will return to the same grocery store. Suppose 14 customers are selected at r
    7·1 answer
  • For positive acute angles A and B, it is known that cos A = 4/5 and tan B =5/12 Find the value of cos(A + B) in simplest form.
    5·1 answer
  • Graph the solution c-12&gt;-16
    10·1 answer
  • Mrs. Douglas packs candy bars into boxes for the members of the school band to sell as a fundraiser. Each candy bar weighs 5.75
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!