Find out the amount of heat developed in 3 minutes by a device of resistance 920 ohm​

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass