A law has always been observed to be true
Answer:
ΔK.E = 2.5 × 10⁻³ J
Explanation:
Given data in the question, we have:
Charge of the particle, q = 5.0 μC = 5 × 10 ⁻⁶ C
Initial speed of the particle, v = 55 m/s
The potential difference, ΔV = 500 V
Now, the gain in kinetic energy is given as
ΔK.E = q × ΔV
on substituting the values in the above formula, we get
ΔK.E = 5 × 10 ⁻⁶ C × 500 V
or
ΔK.E = 2.5 × 10⁻³ J
Well the options r not well described anyways, the answer goes:
1) Foods rich in carb, sugars, proteins...
2) Lack of activity/exercise
3) Not proper use of medicines
4) Imbalanced hormone
5) Dehydration
6) Stress (in some situations)
7) High intake of unhealthy beverages (i.e, juices, alcohol & alike)
And much more
Hope this was helpful :)
Answer:
1.25 rev/s
Explanation:
N = mv^2/r (normal force )
f = μN [Frictional force ]
f = mg
μN = mg
μ(mv^2/r) = mg
v = √(rg/μ)
min rotational velocity
v = √(rg/μ) = √(2.5 * 9.8/0.40) = 7.83 rad/sec
= 7.83/2π = 1.25 rev/s
