Two masses are joined by a massless string. a 30-n force applied vertically to the upper mass gives the system a constant [ans : 490 n] [ans : 1.3 × 10−23 m] [ans : 19 cm] [ans : 1.96 ms−2 ] [ans : 680 m] upward acceleration of 3.2 m/ s 2 . if the string tension is 18 n, what are the two masses?

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 are the similarities & differences between a thermistor and a light dependent resistor in physics?

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created