A golf ball is struck at 75 m/s at an angle of 60 degrees. What is the horizontal velocity in m/s? (Do not state units, and give answers to the
hundredths place.) *

Explanation:

The rectangular components of a vector having a magnitude v and angle θ are:

The golf ball has an initial speed of 75 m/s at an angle of 60 degrees.

The variables of the equations have the values:

v = 75 m/s

θ = 60°

Substituting into the formula:

Without specifying units and with precision to the hundredths place:

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j