The product of mass and velocity is momentum. P=mv. The 'P' in the equation stands for momentum.
I think it's (26.coal)(25.wind.) I hope it's right.
There are three answers, the impulse is equal to the change in momentum of the system. The dimensions of these quantities are the same, namely mass times velocity. You can think of impulse as kind of the "net effect" that a force has in changing the state of motion of a system.
Answer:
0.00185 °C
Explanation:
From the question,
The potential energy of the bird = heat gained by the water in the fish tank.
mgh = cm'(Δt)................... Equation 1
Where m = mass of the bird, g = acceleration due to gravity, h = height, c = specific heat capacity of water, m' = mass of water, Δt = rise in temperature of water.
make Δt the subject of the equation
Δt = mgh/cm'............... Equation 2
Given: m = 1 kg, h = 40 m, m' = 50.5 kg
constant: g = 9.8 m/s², c = 4200 J/kg.K
Substitute into equation 2
Δt = 1(40)(9.8)/(50.5×4200)
Δt = 392/212100
Δt = 0.00185 °C