Author Question: How much energy is necessary to place three charges, each of 2.0 C, at the corners of an equilateral ... (Read 49 times)

jman1234 · **on:** Jul 27, 2018

How much energy is necessary to place three charges, each of 2.0 C, at the corners of an equilateral triangle of side 2.0 cm?

What will be an ideal response?

Question 2

A basketball is thrown with a velocity of 20. m/s at an angle of 60. above the horizontal. What is the horizontal component of its instantaneous velocity at the exact top of its trajectory? (Neglect air friction.)

A) 10. m/s
B) zero
C) 20. m/s
D) 17.3 m/s
E) 20. tan(60) m/s