Physics, 02.06.2021 02:20, alexandradumit3086
A cannon ball has 1000 J of kinetic energy while it is flying through the air. If the velocity of the ball is doubled, then the amount of kinetic energy the cannon ball has would
Be the same
Be four times as great
Be twice as great
Be half as great
Answers: 2
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In a good thermo flask the main cause of heat loss is
Answers: 1
Physics, 22.06.2019 13:00, chie42
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.
Answers: 2
Physics, 22.06.2019 13:50, heatherlemaster
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
A cannon ball has 1000 J of kinetic energy while it is flying through the air. If the velocity of th...
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