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Katyanochek1 [597]
2 years ago
11

*Riddle!* *Riddle!!* *Riddle!!!*

Chemistry
1 answer:
otez555 [7]2 years ago
5 0

Answer:

https://www.getriddles.com/science-riddles/

Explanation:

go to this link, you will find some answers

hope it helps!

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Strontium-90, a radioactive isotope with applications in medicine, has a half-life of approximately 30 years. Out of a 100-gram
AveGali [126]

There are 2 grams remain

<h3>Further explanation</h3>

Given

t1/2 = 30 years

t = 170 years

No = 100 g

Required

Remaining sample

Solution

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

Input the value :

\tt Nt=100.\dfrac{1}{2}^{170/30}\\\\Nt=1.969\approx 2~grams

5 0
3 years ago
If a wave has a wave height of 5 meters, in what depth of water would it begin to break?
Marysya12 [62]

Answer:

6.5 meters

Explanation:

Background Knowledge:

The most familiar example of breaking wave is the breaking of water surface waves on a coastline.

Explanation:

The process of Wave breaking in most of the cases occurs when the amplitude reaches the point that the crest of the wave actually overturns

Factors by which waves are produced:

Different type of waves are produced and varied according to different type of factors. These factors are

Wind direction

Type of swell

Sea floor features

Slope of sea bed

Direct answer of the question:

In general rule, Waves start to break on reaching a water depth of 1.3 times the wave height.

In this question wave height is 5 meters so wave breaks on

5 × 1.3 = 6.5 meters

4 0
3 years ago
Describe the properties of oobleck when it behaves like a solid and a liquid.
PSYCHO15rus [73]

Answer:

hope it's help you ok have a good day

7 0
2 years ago
Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have
saw5 [17]

Answer:

The answers are options b , c and d.

Hope this helps.

7 0
2 years ago
Give an example of instantaneous speed
OleMash [197]
Cheetah who is running with speed of 80 miles per hour then it is his instantaneous speed becaue i shows as in per hour speed..... hope it helps
3 0
3 years ago
Read 2 more answers
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