Answer:
Names of the Equations of Motion
1 The First Equation of Motion is, v=u+at is known as velocity – time relation. 2 The Second Equation of Motion is, s=ut+12at2 is known as position – time relation.
Use Bernoulli equation with the following assumptions.
1) velocity of the milk on the top is near 0, because the hole is so small that the level of milk will descend slowly, compared with the velocity of the outflow.
2) Pressure on the top = pressure on the bottom. This means that we consider that the top is open to the atmosphere.
Then, the terms of pressure cancel, and Bernoulli's equation leads to:
Z1 + p1/(d*g) + (V1)^2/(2g) = Z2 + p2 /(d*g) + (V2)^2 /(2g)
=> (V2)^2 = 2g (Z1 - Z2)
g = 9.8 m/s^2
Z1 - Z2 = 5cm
(V2)^2 = 2*(9.8 m/s^2)*(0.05m) = 0.98 m^2/s^2
V2 = 0.99 m/s
<span>distance = rate * time
d = 28 km
r = 4 km/h
Find t in hours.
28km = 4km/h * t
28km/4km/h = t
7 hours = t
t = 7</span>
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Answer:
False
Explanation:
The magnitude of electric charge carried by an electron as well as proton is called elementary charge. Both the electron and proton have the same charge but the difference is that the electrons are negatively charged species and the protons are positively charged.
The elementary charge is equal to 
. Hence, the given statement "The elementary charge equals 
" is false.
