What determines the velocity of an object? Its acceleration at a given point in time Its weight in a given location Its displace
1 answer:
We can confirm that the velocity of an object is determined by the displacement of the object over a period of time.
<h3>How do we know that displacement and time determine velocity?</h3>We know this by analyzing the scientific formulas created to measure the velocity of an object. The formula for this is , meaning displacement over a period of time. Since option 3 described this equation perfectly, we can say that this is the correct option.
Therefore, we can confirm that the velocity of an object is determined by the displacement of the object over a period of time.
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<u>Answer:</u> The concentration of radon after the given time is
<u>Explanation:</u>
All the radioactive reactions follows first order kinetics.
The equation used to calculate half life for first order kinetics:
We are given:
Putting values in above equation, we get:
Rate law expression for first order kinetics is given by the equation:
where,
k = rate constant =
t = time taken for decay process = 3.00 days
= initial amount of the reactant =
[A] = amount left after decay process = ?
Putting values in above equation, we get:
Hence, the concentration of radon after the given time is