Ask question

Ask question

All categories

BlackZzzverrR [31]

2 years ago

12

A 432 g sample of 60/27Co has a decay constant of 4.14 x 10-9 s-1. How long will it take before only 1/3 of the original sample

remains?

1 answer:

Musya8 [376]2 years ago

7 0

Answer:

remain 1s60

Explanation:

I took away sample

You might be interested in

Which of the following allows the human body to maintain stability in response to a viral infection

tiny-mole [99]

The spine is the one that keeps a huminss body mantaned

3 0

3 years ago

A disk is uniformly accelerated from rest with angular acceleration α. The magnitude of the linear acceleration of a point on th

solniwko [45]

Answer:

$a = R\alpha\sqrt{1 + \alpha^2t^4}$

Explanation:

As we know that the acceleration of a point on the rim of the disc is in two directions

1) tangential acceleration which is given as

$a_t = R\alpha$

2) Centripetal acceleration

$a_c = \omega^2 R$

here we know that

$\omega = \alpha t$

$a_c = (\alpha t)^2 R$

now we know that net linear acceleration is given as

$a = \sqrt{a_c^2 + a_t^2}$

so we have

$a = \sqrt{R^2\alpha^2 + R^2(\alpha t)^4}$

$a = R\alpha\sqrt{1 + \alpha^2t^4}$

4 0

3 years ago

The moon orbits the earth once every 27 days at a distance of 384400 km. The international space station orbits the earth at an

Leno4ka [110]

Answer:

ive never done this befor but i think its 36 times aroud earth a day

Explanation:

384400/400=961

961% of 27 days is 40minuets

1440/40=36

7 0

3 years ago

I am unique even though there are billions of me no two are the same what am I

Aleksandr [31]

I think the answer is Snow flakes

6 0

3 years ago

Read 2 more answers

Question 1 of 10

ss7ja [257]

Answer: ME= E total - E thermal

5 0

2 years ago