Which energy transformation takes place when a firecracker explodes?
a. gravitational potential to mechanical and electromagnetic
b. nuclear to kinetic and chemical
c. mechanical to electromagnetic and electrical
d. chemical to thermal and electromagnetic

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.

Ineed with my physics homework i can’t find it on google