From the law of atmosphere
Where
= constant and is number density where the height y = 0cm
= Number density at height y=3cm
Kb = Boltzmann constant
Re-arranging the equation to have the value of the gravity,
Since it is 30% of value above surface, therefore
Therefore the correct answer is C.
Answer:
A. True it's right solids have a definite shape and volume.
Answer is: 3.33 Amperes (A)
Given:
Device 1: 12 ohms
Device 2: 4 ohms
Voltage Total: 40 V (Volts)
Solution: 40 V = V1 = V2
Voltage = IR
I1 = V1 / R1
I1 = (40 V) / (12 Ohms) = 3.334 A (Amperes)
I1 = 3.33 A
Answer:
It takes the motorcycle about 12.65 seconds to reach 100mph
Explanation:
Answer:
Explanation:
consider the mass of each train car be m
m₁ = m₂ = m₃ = m
speed of the three identical train
u₁ = u₂ = u₃ = 1.8 m/s
m₄ = m u₄ = 4.5 m/s
m₅ = m u₅ = 0 (initial velocity )
final velocity
v₁ = v₂ = v₃ = v₄ = v₅ = v
using conservation of momentum
m₁u₁ + m₂u₂ + m₃u₃ + m₄u₄ + m₅u₅ = m₁v₁ + m₂v₂ + m₃v₃ + m₄v₄ + m₅v₅
m (1.8 + 1.8 + 1.8 +4.5) = 5 m v