A cone is in unstable equilibrium, has its potential ener...
A cone is in unstable equilibrium, has its potential energy
decreased
increased
unchanged
oscillating
Correct answer is B
In unstable equilibrium, potential energy decreases as the height decreases
Which of the following statements on the use of X-rays is incorrect? X-rays are used ...
During the nuclear reaction described by 235W →235X→231Y929391 the particles emitted are resp...
For a short sighted person, light rays from a point on a very distant object is focused ...
Notes of the same frequency sounded on a guitar and trumpet may differ in I. loudness II. Pitch ...