Answer:
First trial: Big ball dropped first, feather fell much later
Second trial: Big ball and small bell fell at same time
Third trial: small ball fell first, feather fell later
Explanation:
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Answer:
a) 22.471 x 10^-11 N
b) -22.471 x 10^-11 N
Explanation:
given the charge on an electron = 1.6 x 10^-19 C
nucleus contain 79 protons
hence, charge on nucleus =79 x 1.6 x 10^-19 C
distance r = 9 x 10^-9 m
a) therefore, force exerted by the gold nucleus on the electron = Kqe/r^2
= 9 x 10^9 x 79 x 1.6 x 10^-19 x 1.6 x 10^-19 / ( 9 x 10^-9 m)^2
= 22.471 x 10^-11 N
b) force exerted by the electron on the gold nucleus ; = -Force exerted by gold on electron ( From newton third law of motion)
= - 22.471 x 10^-11 N
Inertia is the tendency of an object to resist a change in its motion.
Answer:
a = (v² − v₀²) / (2 (x − x₀))
Explanation:
v² = v₀² + 2a(x − x₀)
Subtract v₀² from both sides.
v² − v₀² = 2a(x − x₀)
Divide both sides by 2 (x − x₀).
(v² − v₀²) / (2 (x − x₀)) = a