The heat in the air ballon from the flame will create moisture in the ballon and make it rise
Answer:
a) f = 809.5 Hz
, b) f = 1619 Hz
Explanation:
The condition for destructive interference from the speakers is
Δr / lam = Ф / 2π
λ = Δr 2π / π
We substitute
λ = 0.21 2 π/π
Lam = 0.42 m
Now let's use the ratio of the speed of sound and the wavelength and the frequency
v = λ f
f = v /λ
f = 340 / 0.42
f = 809.5 Hz
b) in this case the intensity is maximum
Lam = Δr 2π / 2π
Lam = 0.21 m
fF= v / lam
f = 340 / 0.21
f = 1619 Hz
-Both states of matter are the same temperature
-false( not very sure for this)
Explanation:
Sorry i had to post it here. This is for the chemistry question on The top
Answer:
a few of the positive particles aimed at a gold foil seemed to bounce back.