Answer:
-4.8 m/s²
Explanation:
Apply Newton's second law:
∑F = ma
F − mg = ma
300 N − (60 kg) (9.8 m/s) = (60 kg) a
a = -4.8 m/s²
The acceleration five seconds after jumping is 4.8 m/s² downward.
Answer:
25lb
Explanation:
You haven't changed (you are made up of the same atoms), but the force exerted on you is different. Physicists like to say that your mass hasn't changed, only your weight.
Answer:
This is to optimize storage and transport.
Explanation:
Answer:
i would think it is to the left
Explanation:
the normal and gravitational forces cancel each other out so the only force left is the one to the left
the only thing that throws me off is it says friction
hope this is right and helps
The frequency that the submarine detects a frequency f' as described by Equation 17.19.
Explanation :
(a) Using the Doppler Shift formula, we can determine the frequency of the sonar signal that the crewman in submarine B heard:
Hence, the frequecy of that the submarine detects a frequency f' as described by Equation 17.19.
<h3>
What do you mean by Frequency?</h3>
A frequency is the quantity of waves produced each second.
A measure of frequency is the number of times in a second that an alternating current (AC) changes from positive to negative. Direct currents do not experience this switching (DC). Hertz is used to measure frequency (Hz) The period is the length of time it takes for an AC current to start at zero, change from positive to negative, and then return to zero (i.e., the length of time it takes to complete one cycle), while the frequency is the reciprocal of the period. In contrast to low frequency, which has fewer waves per second but a longer period, high frequency refers to the number of waves per second and the length of the period.
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