The gravitational force between two objects increases as mass
2 answers:
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Answer:
Breaths per minute is a frequency. The period is its reciprocal.
Explanation:
In simple harmonic motion, a period (T) is the time taken for one point to start in a position and reach that position again, in other words to complete a cycle or lapse. In this case, a period is the time one takes from starting to inspire the air to releasing all of it from the lungs.
In simple harmonic motion, the frequency (f) is how many times a point completes a cycle or lapse in one unity of time (could be one second, one minute, one hour, etc). In this case, the frequency is how many times one breathes in one minute. This is the breathing rate, since it is breathings per minute. Breaths per minute is a frequency.
Period (T) and frequency (f) relate to each other in the following formulae: or
.
Therefore, breaths per minute is a frequency, and since it is related to the period, we say the period is reciprocal to it.
Answer:
The velocity and mass of the target ball are 1.6 m/s and 1.29 kg.
Explanation:
Given that,
Mass of softball = 0.220 kg
Speed = 5.5 m/s
(a). We need to calculate the velocity of the target ball
Using conservation of momentum
....(I)
The velocity approach is equal to the separation of velocity
(b). We need to calculate the mass of the target ball
Now, Put the value of v₂ in equation (I)
Hence, The velocity and mass of the target ball are 1.6 m/s and 1.29 kg.