4 years ago

In which year weare go to mars ?

Physics

2 answers:

mario62 [17]4 years ago

4 0

Depending on how things go we might not even go

Rudiy274 years ago

3 0

Answer:

The first crew of four astronauts were to land on Mars in 2025. Then, every two years, a new crew of four would arrive.

Explanation:

look it up my dudeski

You might be interested in

PLEASE HELP IM CONFUSED

Fittoniya [83]

Sound waves can be used in a similar way to "see" things. After turning on a sound source, we can look at the pattern of reflected sound waves that bounce back to us. Our own ears and brain don't process sound into mental pictures.

3 0

3 years ago

3. Two people push on a car with a force of 5150 N, and the car moves a distance of 8.0m. What is the

MArishka [77]

I think c not sure tho

6 0

3 years ago

Read 2 more answers

Riddle of the day What is so fragile that saying its name breaks it?

anyanavicka [17]

answer:

The answer to this specific riddle is silence.

-- please mark the brainliest and click the thanks button if correct :)

6 0

3 years ago

Read 2 more answers

The half-life of a certain radioactive substance is 12 hours. There are 19 grams present initially. a. Express the amount of su

neonofarm [45]

Answer:

(a) $N=19\times e^{-\lambda t}$

(b) 15 hours

Explanation:

half life, T = 12 hours

No = 19 g

(a) Let N be the amount remaining after time t.

Let λ be the decay constant.

$\lambda =\frac {0.6931}{T}$

The equation of radioactivity used here is given by

$N=N_{o}e^{-\lambda t}$

$N=19\times e^{-\lambda t}$

(b) N = 8 gram

Substitute the values in above equation

$\lambda =\frac {0.6931}{12}$

λ = 0.0577 per hour

So, $8=19\times e^{-0.577t}$

$e^{-0.0577t}=0.421$

Take natural log on both the sides

- 0.0577 t = - 0.865

t = 15 hours

4 0

3 years ago

Which of the following are used in an electrochemical cell?

yanalaym [24]

Answer:

B please give me brainlyest

Explanation:

6 0

3 years ago

In which year weare go to mars ?​

In which year weare go to mars ?