How long does it take a 15 Hz oscillating spring to complete one cycle?
1 answer:
How long does it take a 15 Hz oscillating spring to complete one cycle?
Answer a.) 0.067 s
Explanation : The time required for one repetition is called the period. The period is the duration of one cycle. The frequency is the number of cycles per unit time. Here 15 Hz = 15cycles/s
period = 1cycle/frequency = 1cycle/15cycles/s = 1/15 s = 0.066 s ≈ 0.067 s
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¡Hellow!
How we know, for calculate density, we can use the formule:
<u>Where:</u>
p = Density = ?
m = Mass = 57,9 g
v = Volume = 3 cm³
Let's replace according we information:
p = 57,9 g / 3 cm³
p = 19,3 g/cm³
The density of the metal bar is <u>19,3 g/cm³.</u>
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¿Good luck?
Answer:
a) t = 0.528 s
b) D = 1.62 m
Explanation:
given,
speed of the baseball = 3.75 m/s
angle made with the horizontal = 35°
height of the roof edge = 2.5 m
using equation of motion
4.9 t² + 2.15 t - 2.5 = 0
on solving the above equation
t = 0.528 s
b) D = v cos θ × t
D = 3.75 × cos 35° ×0.528
D = 1.62 m