The beat frequency is ωbeat = |ω1−ω2|. In the experiment, you measure periods.
Re-express the beat period in terms of the fundamental periods T1 and T2, Which of the following expressions is correct?

A) T = T1T2 / (T2-T1)
B) T = T2-T1/ T1T2
C) T = T1T2 / 2πT2 - T1
D) T = 2πT2 - T1 / T1T2

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

a sonic boom is a loud boom that breaks the sound barrier

explanation: