Frequency is the vibration of noise and the vibration determines the pitch, which we depend on to be a pitch or frequency we can hear. If it's too high or too low our ears can't hear it
Initial velocity = Vo= 25 m/s
Final velocity = V = x
Acceleration= a = 6 m/s^2
time= t = 4 seconds
Appy the equation:
V = Vo + at
Replacing:
V = 25 + 6(4) = 25 + 24 = 49 m/s
239.583 days is the answer
Answer:
Magnitude of gravitational force of the electron= 3.74×10^12N
Explanation:
Felectron= Fgravitational
Therefore:
Felectron/Fgravitational = kq^2/r^2 ×(r^2/Gm^2)
= kq^2/Gm^2
Where G= gravitational constant
m = mass of electron=9.1×10^-31
K= 8.9x10^9
q= 1.6×10^-19
Magnitude of gravitational force= (8.9×10^9)×(1.6×10^-19)^2/(6.7×10^-11)×(9.1×10^-31)
=( 2.2784×10^-28) / ( 6.097×10^-41)
= 3.74×10^12N
