30.06.2021

# The half-life of gold-195m is approximately 30.5 seconds. Step 2 of 3 : How much of a 12 gram sample of gold-195m would remain after 41 seconds? Round to three decimal places.

1

28.04.2023, solved by verified expert

4.726 grams

Step-by-step explanation:

Given that :

Half-life of gold-195m (t½) = 30.5 seconds

Mass of gold-195 (N0) = 12 grams

The formula for decay is given by :

Nt= N0(1/2)^(t/t½)

Here Nt is the amount left after t seconds and t = 41 seconds.

Thus,

Nt = 12(1/2)^(41/30.5)

= 4.726 grams

### Faq

Mathematics

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make \$108 in \$1800 sales

Mathematics

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics

The answer is in the image

Mathematics

tip=18% of 75.45

=18/100 * 75.45 = \$13.581

Tip = \$13.581

Mathematics

The solution is given below

Mathematics

We can put the numbers in ascending order-

36, 38, 39, 39, 40, 47, 48, 51

Range=max-min

=51-36

=15

Mathematics

There are 6 outcomes 1,2,3,4,5,6

Total outcomes = 6

Outcomes when rolling a number is 4 or less = 1,2,3,4

Total outcome when rolling a number is 4 or less=4

Probability = required outcome/total outcome

=4/6

=2/3

Therefore probability = 2/3

Mathematics

Volume of pool = 1472 m^3

Length = 36.8m

We know,

Volume = l*b*h

1472 = 36.8 * 20 * h

h = 1472/736

h = 2m

Pool is 2m deep

What is Studen
Studen helps you with homework in two ways:

## Try asking the Studen AI a question.

It will provide an instant answer!

FREE