I'm about 80% out of 100% it's B but I'm just guessing , That's the only one making sense to me.
Answer:
Dependent variable.
Explanation:
Based on the description, the experiment is designed to confirm or reject a hypothesis about a heat absorption patterns by hollow objects with different transparency. Temperature appears to be the main target variable of interest - this is the <em>dependent</em> variable. Material that each box is made of (specifically, its transparency) is in this case the independent variable, which is determined by the experimenter.
Answer:
Explanation:
Answer:
Explanation:
The half life is the time taken for half of a radioactive substance to disintegrate.
The shorter the half life, the larger the decay constant and the faster the decay process.
For a very large half life, it would take a very long time for the radioactive nuclide to decay to half.
With each half life reached, a new set of daughter cell is formed. Atoms that have short half life would decay rapidly. Every radionuclide has its own characteristic half-life.
If the number of half-lives increases, then the number of radioactive atoms decreases, because approximately half of the atoms' nuclei decay with each half-life. With this observation, we can hypothesise and conduct experiment to support the assertion that as the number of half-lives increases then the number of radioactive atoms decreases.
This being a perfect collision means no energy is lost during the collision. Because this question asks for speed and not velocity, the speed will be the same because the final energy is the same. The speed after the collision would therefore be 1.27 m/s.
