<h3>
Answer:</h3>
60 days
<h3>
Explanation:</h3>
Half-life is the amount of time it takes half of a substance to decay away.
Guess and Check
One method for solving half-life problems like this is to guess and check. To do this, we can continue to divide 475mg by 2 until we get to 30mg.
- 475 ÷ 2 = 237.5
- 237.5 ÷ 2 = 118.75
- 118.75 ÷ 2 = 59.375
- 59.375 ÷ 2 = 29.6875
As seen here, it takes approximately 4 half-lives for this sample of Ra-225 to decay to 30mg. Now, we can multiply 4 by the length of the half-life, 15 days.
Fractions
Another way to solve this is to use fractions.
- 16 is equivalent to
.
This means that it takes 4 half-lives for 475mg to decay to 30mg. Using the same method above, we can tell that 4 half-lives are 60 days.
Important Note
In this question, I rounded occasionally. So, not all of the values are exact, but they are all very close.
Pre-entrants to the industry incubation stage use alliances and acquisitions by developing new core technologies to create a portfolio of various sourcing modes.
<h3>What is the industry incubation stage?</h3>
The industry incubation stage can be defined as the period between when an industry experiences a technological breakthrough of its first product and the first instance of its commercialization.
In Business management, pre-entrants to the industry incubation stage typically make use of strategic alliances and acquisitions by developing new core technologies to create a portfolio of various sourcing modes.
Read more on industry incubation stage here: brainly.com/question/17350812
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Complete Question:
How do pre-entrants to the industry incubation stage choose between alliances and acquisitions for technical capabilities and specialized complementary asset?
Bromine has stronger inter molecular force than Fluorine.
<h3> Inter molecular forces and relationship with physical states of matter</h3>
The intermolecular forces of a substance tells the physical state of that substance , We can therefore say that the Solid, liquid and gas states of substances depends on the intermolecular forces surrounding them.
- For solids,the inte molecular forces will be so strong as they draw the molecules together giving them a compact structure.
- For liquids, the the inter molecular forces will be just strong enough to keep the molecules together in a confined space.
- For gases, the the inter molecular forces are weakest as the molecules move about.
We can then conclude that At stp, fluorine is a gas and bromine is a liquid because, compared to fluorine, bromine has a stronger intermoleclar force.
See more of intermolecular forces here: brainly.com/question/492113
Answer:
A poem is timeless, while a story is tied to a particular place and time.
Explanation:
got it right on edge
Las motocicletas tienen dos ruedas. (Sorry I didn't know what the question was)
