Sound waves will either be reflected (echo effect) or absorbed (dissipated) depending upon the material make-up of the barrier
The answer would be C. increasing the sound of charge on each particle by a factor of 9
Bernoulli's Principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases. The Bernoulli's Principle explains the behavior of an ideal fluid passing through a pipe or enclosed passageway such a pump.
Responda:
30.0066 m
Explicação:
Dado o seguinte:
Temperatura (t1) = 5 ° C
Comprimento (L1) = 30m
Temperatura (t2) = 25 ° C
Coeficiente de expansão linear do aço (α) = 11 × 10 ^ -6 ° C-1
Lembre-se:
Expansibilidade linear (α):
Alteração do comprimento / comprimento original (diferença de temperatura)
α = [ΔL / L1 (ΔT)]
α = [(L2 - L1) / L1 (T2 - T1)]
α * L1 (T2 - T1) = (L2 - L1)
11 × 10 ^ -6 * 30 (25-5) = L2 - 30
11 × 10 ^ -6 * 30 (20) = L2 - 30
11 × 10 ^ -6 * 600 = L2 - 30
6600 × 10 ^ -6 = L2 - 30
L2 = 0,0066 + 30
L2 = 30.0066m
Answer:
46.9 C
Explanation:
The heat released by the gold bar is equal to the heat absorbed by the water:
where:
is the mass of the gold bar
is the specific heat of gold
is the initial temperature of the gold bar
is the mass of the water
is the specific heat of water
is the initial temperature of the water
is the final temperature of both gold and water at equilibrium
We can re-arrange the formula and solve for T_f, so we find: