A2.35 kg ball is attached to a ceiling by a3.53 m long string. the height of the room is5.03 m .the acceleration of gravity is 9.8 m/s2.
what is the gravitational potential energyassociated with the ball relative to the ceiling? answer in units of j.

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

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.

What happens when the vapor pressure of a liquid is equal to the external pressure?