What is the mass of an object moving at a speed of 9.0 m/s with a kinetic energy of 200 J? Group of answer choices

2.5 kg

4.9 kg

44 kg

1.2 kg

0.81 kg

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?