why does a hot-air ballon rise? a the volume of the air dispalced by the balloon is less than the volume of the balloon. b the weight of the air dispaced by the ballon is less than the volue of the ballon. c the wight of the balloon is less than the weight of the air displced by the balloon.
Answers: 2
Physics, 22.06.2019 18:30
Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.
Answers: 1
Physics, 22.06.2019 19:30
Coal contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 1
Physics, 23.06.2019 05:30
The reason a penny thrown straight up inside a bus will come back to your hand is that you,the bus,the air inside the bus, and the penny are all moving at the same velocity. true or false
Answers: 2
why does a hot-air ballon rise? a the volume of the air dispalced by the balloon is less than the vo...
Mathematics, 17.09.2019 18:00
Spanish, 17.09.2019 18:00
Social Studies, 17.09.2019 18:00
English, 17.09.2019 18:00
Chemistry, 17.09.2019 18:00
Biology, 17.09.2019 18:00
Mathematics, 17.09.2019 18:00