In times square in new york city, people celebrate on new year's eve. some just stand around, but many move about randomly. consider a group consisting of all of these people. approximately, what is the total linear momentum of this group at any given instant? a. zero
b. their average speed multiplied by their total mass
c. their total impulse

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?