Answer:
D. 2.5 Hz
Explanation:
Frequency = speed of wave / wavelength
= 335 /140 ( from graph)
= 2.4
Light travels faster than sound ,because sound can only travel waves.
Answer:
Gravitone
Explanation:
In theories of quantum gravity, the graviton is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravity. There is no complete quantum field theory of gravitons due to an outstanding mathematical problem with renormalization in general relativity.
mass of two students are
distance between them is given as
now gravitational force between them is given as
now plug in all values
so above is the force of gravitation between them
Solid, because the atoms maintain their form and do not take the shape of their container. The particles share tight, close bonds due to this set shape
