Answer: 0 kgm/s
Explanation: The formulae for momentum is given below as
Momentum = mass × velocity.
The highest point of the diver is simply the point at the maximum height.
Let us assume that the motion of the diver is of a free fall.
For a free fall motion, velocity = 0 m/s and acceleration = - g, where g = 9.8
Hence, at maximum height, v = 0 and m = 65kg hence momentum = 65 × 0 = 0 kgm/s
Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons.
Answer:
1.208
Explanation:
L = Length of tube
c = Speed of light in air
v = Speed of light in jelly
Time taken by light in tube
Time taken when jelly is present
Dividing the above equations we get
The refractive index of the jelly is 1.208
Answer:
The pressure on each side of the clot is same.
Explanation:
The clot is moving with a constant velocity which implies that the total force on the clot is zero.
The force F is given by the formula.
F=ΔPA
where ΔP is the difference in pressure and A is the area.
Since the force is same on either side, therefore,
ΔPA=0
Also, the area is same on both side of the clot.
Therefore the difference in the pressure of both side is zero which implies that the pressure on both sides are equal.
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