To find the average velocity during a 15-second interval, you would calculate the total displacement during that time and divide it by the total time. The formula for average velocity is displacement divided by time.
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The velocity of a freely falling object 6 seconds after being dropped is approximately 58.8 m/s. This assumes that the object is falling under the influence of gravity (9.81 m/s^2) in a vacuum, with no air resistance.
Time is typically considered an independent variable because it is under the control of the experimenter and is used to measure the changes in the dependent variable, which is position in this case. Position, on the other hand, is dependent on time as it varies based on the specific time interval being measured. Position changes as time progresses, making it the dependent variable in this context.
To find the frequency of gamma radiation from mega electron volts, you can use the equation E = h*f, where E is the energy in electron volts, h is Planck's constant, and f is the frequency. By converting mega electron volts to electron volts and rearranging the equation, you can solve for the frequency.