¿Alguien me puede ayudar por favor? ¿Alguien me puede hacer esta actividad? Nombra los siguientes óxidos según la nomenclatura de composición con prefijos numerales y la de composición con números de oxidación.

CoH
NaH
CuH
PbH4
SbH3
CaH2
SnH2
NiH3

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

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.

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?