Tsunami? I think so maybe it’s right
Answer:
gamma is shortest, radio waves are longest
Answer:
Acceleration of the boy a₁:

Explanation:
Conceptual analysis
We apply Newton's second law to the boy and the girl:
F = m*a (Formula 1)
F : Force in Newtons (N)
m : mass in kilograms (kg)
a : acceleration in meters over second square (m/s²)
Nomenclature
m₁ : boy mass
m₂ : girl mass
a₁ : boy acceleration
a₂ : girl acceleration
F₁ : boy acceleration
F₂ : girl acceleration
Known data
m₁ = 57 kg
m₂ = 41 kg
a₂ = 2.6 m/s²
Problem development
We apply to Newton's third law of action and reaction, then:
F₁ = F₂ , We apply the formula (1):
m₁*a₁ = m₂*a₂



One of the handy formulas for electrical power is
Power = (Voltage)² / (Resistance)
Since the voltage is squared, if you double the voltage and
the resistance doesn't change, the power will increase by
the factor of (2²), which is 4 times the original power.
Answer:
v₁ = u₁/2√3 ≈ 0.866u₁
v₂ = u₁/2 = 0.5u₁
θ = 60°
Explanation:
let u₁ be the initial velocity of the first ball
let v₁ be the final velocity of the first ball
let v₂ be the final velocity of the second ball
For elastic collisions, the angle between the departing masses is 90°
assume the first ball initially moves along the x axis in the positive direction
conservation of momentum
In the y direction, initial momentum is zero
After the collision
mv₁sin30 = mv₂sin60
½v₁ = ½√(3)v₂
v₁ = √(3)v₂
in the x direction,
mu₁ = mv₁cos30 + mv₂cos-60
u₁ = v₁cos30 + v₂cos60
u₁ = (√(3)v₂)½√(3) + ½v₂
u₁ = 2v₂
v₂ = u₁/2
v₁ = √(3)v₂ = √(3)(u₁/2)