Author Question: A projectile is launched with initial velocity v0 at an angle of 30 above the horizontal. If a ... (Read 234 times)

formula1 · **on:** Jul 29, 2018

A projectile is launched with initial velocity v0 at an angle of 30 above the horizontal. If a second projectile is launched with the same initial velocity but at angle of 60 above the horizontal.

A) The range of the second projectile will be twice that of the first.
B) The range of the second projectile will be 1.41 that of the first.
C) The range of the second projectile will be one-half that of the first.
D) The ranges of the two projectiles will be identical.
E) It is impossible to compare the ranges of the two projectiles.

Question 2

Which of the following expression(s) represents the electrical energy stored by a capacitor?

A) QV/2
B) CV2/2
C) Q2/2C
D) All of the expressions are correct.
E) None of the expressions is correct.