A catapult on a level field tosses a 3.0 kg stone a horizontal distance of 100 m.
A second 3.0 kg stone tossed in an
identical fashion breaks apart in the air into
two pieces, one with a mass of 1.0 kg and
one with a mass of 2.0 kg. Both of the
pieces hit the ground at the same time. If
the 1.0 kg piece lands a distance of 180 m
away from the catapult, how far away
from the catapult does the 2.0 kg piece
land? Ignore air resistance.

Give an example in which the electrical energy changes to light energy

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?