Answer:
D. use the data to evaluate the effectiveness of the prototype
When the nuclear half-life of the radioactive isotope is showing the time needed for the isotope to be half of its initial value of mass.
so with each half-life, the isotope will be halved of its initial value as example:
after the first half-life, the isotope will lose 50 % of its initial value
and after the second half-life, the isotope will lose 25% of its initial value
and after the third half-life, the isotope will lose 12.5 % of its initial value
and so on,
So here to get how many numbers of half-lives we will use this formula:
numbers of half-lives = total time passed / the half-life of the isotope
= 30 days / 14 days
=2 days
∴remainig mass = initial mass / 2^numbers of half-lives
= 10 g / 2^2
= 2.5 g
Well, the big bang theory was that the universe started to expand at and extrmly fast rate. We're talking several billion kilometers in less than a second. People think that our univers was pretty much shot out into space in a ciertain direction. During this, the univers has expanded and widen't to unimaginable size. but we really don't know what happend, and we may never find out. Who knows?
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
Answer:
chemical bond
Explanation:
because this is the only bond used in chemical reactions just like molecules of atoms are combined by this bond
