Answer:
Explanation:
The question relates to Doppler effect and beat.
The observer is moving towards the reflected sound so apparent frequency will be increased
f = f₀ x (V + v₁) / (V - v₂)
f is apparent frequency , f₀ is real frequency , V is velocity of sound , v₁ is velocity of observer and v₂ is velocity of source . Here
v₁ = v₂ = vp as both observer and source have same velocity
f = f₀ x (V + v₁) / (V - v₂)
205 +5 = 205 x (344 +vp)/ ( 344 - vp)
1.0234 = (344 +vp)/ ( 344 - vp)
= 352 - 1.0234vp = 340+vp
12 / 2.0234vp
vp = 6 m /s approx.
T = ??°K, V = 15.50L, P = 870torr
PV = nRT, with P in atm, 760torr/atm
T = PV / nR = 1atm/760torr × 870torr×15.5 ÷ .0821 = 216.12 °K
Answer:
rolling friction is the lady in the forest
static friction is the man pushing the fridge
sliding friction is the snow kid
and fluid fraction is the bird I'm pretty sure
Food is edible and money isn’t you can buy stuff with money but you can’t buy stuff with food. Food and money have many differences. They are nothing close to similar.