Answer:
<em>The Answer to question 14 is : glycerol (n=1.47)</em>
Answer:
I'm pretty sure its product.
Explanation:
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Answer: Waning
Explanation: Not much explanation for this
Answer:
Explanation:
a ) Applying law of conservation mechanical energy
1/2 mv² = mgh
v =√ 2gh
= √ 2 x 9.8 x 3
= 7.67 m /s
b ) Applying law of conservation of momentum
m x 7.67 = ( m + 2m ) v
= 3m v
v = 2.55 m /s
In perfectly inelastic collision , mechanical energy is not conserved.
Initial kinetic energy
= 1/ 2 x m x v²
= .5 x m x 58.8
= 29.4 m
Kinetic energy after collision
= .5 x 3m x (2.55) ²
= 9.75375 m
Loss of kinetic energy
= 19.646 m
-
F = k(Q₁Q₂)/r²
where k is Coulomb's constant 8.99e9
F = 8.99e9(2.8e-6)²/0.5² = 0.2819N