30 speed of light in the glass
Answer:
Explanation:
If the mass of an object is 5 kg, it means that it weighs 5 kg
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Explanation:
using the first eqn for motion
Density =Mass/volume
When mass is constant, density is inversely proportional to volume or vice versa
When volume decreases, density increases
Hope it helps
#28
Fluid always flow from higher pressure to lower pressure so as we can see the figure liquid is coming out of the spray bottle so it clearly shows that the pressure outside the tube will be lower than the pressure inside the tube.
#29
Momentum is defined as product of mass and its velocity
so here we will have

here we have


so we will have

