Answer:
8 m³
282.3 ft³
Explanation:
The volume of each box is width times length times depth:
V = (1 m) (2 m) (1 m)
V = 2 m³
There are four boxes, so the total volume is:
4V = 8 m³
Converting to cubic feet:
8 m³ × (3.28 ft / m)³
= 282.3 ft³
Answer:
frequency of the sound = f = 1,030.3 Hz
phase difference = Φ = 229.09°
Explanation:
Step 1: Given data:
Xini = 0.540m
Xfin = 0.870m
v = 340m/s
Step 2: frequency of the sound (f)
f = v / λ
λ = Xfin - Xini = 0.870 - 0.540 = 0.33
f = 340 / 0.33
f = 1,030.3 Hz
Step 3: phase difference
phase difference = Φ
Φ = (2π/λ)*(Xini - λ) = (2π/0.33)* (0.540-0.33) = 19.04*0.21 = 3.9984
Φ = 3.9984 rad * (360°/2π rad)
Φ = 229.09°
Hope this helps!
B would be the correct answer. All the other choices consist of physical changes
Answer:
Chemical Energy To Thermal Energy
Explanation:
Fire is a chemical reaction. So, because of chemical reactions, the temperature raises to ignition temperature and results as fire. And then it releases photons(that generates heat after being hit by any other matter)
