*Question*
The electrochemical equivalent of a metal is 0.126 x 10⁻⁶ kg/C. The mass of the metal that a current of 5A will deposit from a suitable bath in 1 hour is

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot