Which statement is always true according to vsepr theory?
(a) the shape of a molecule is determined only by repulsions among bonding electron groups.
(b) the shape of a molecule is determined only by repulsions among nonbonding electron groups.
(c) the shape of a molecule is determined by the polarity of its bonds.
(d) the shape of a molecule is determined by repulsions among all electron groups on the central atom (or interior atoms, if there is more than one).

Suppose you were asked to find the torque about point p due to the normal force n in terms of given quantities. which method of finding the torque would be the easiest to use?

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.

)consider two positively charged particles, one of charge q0 (particle 0) fixed at the origin, and another of charge q1 (particle 1) fixed on the y-axis at (0,d1,0). what is the net force f⃗ on particle 0 due to particle 1?