Select all situations in which the acceleration of the ball is - 9.8 m/s/s a. A boy throws a ball up into the air.
b. As the ball travels upward.
c. When the ball is at the top of its path.
d. When the ball is falling down.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow