<span>The heaviest precipitation falls on the western slopes of the cascades.
Explanation: the wind blowing from Pacific ocean contains a lot of moisture. While it raises it cools down and condenses forming rain. This happens on the side of cascades at which air rises. In this case it is western slope of the cascade which is closer to Pacific ocean.</span>
Answer:
5.71 rad/s , 54.55 rev/min
Explanation:
mass of disc, m = 60 kg
diameter of disc = 35 cm
radius of disc, r = 17.5 cm
Rotational kinetic energy, K = 15 J
Let I be the moment of inertia of the disc and ω be the angular speed of the disc.
The moment of inertia of the disc is given by
I = 0.5 x 60 x 0.175 x 0.175 = 0.92 kg m^2
Kinetic energy
ω = 5.71 rad/s
ω = 5.71 / 2π rev /s
ω = 0.909 rev /s
ω = 0.909 x 60 rev / min = 54.55 rev/min
Answer
given,
Power output of loud train = 100 W
Distance of intensity level from train= 100 m
I₀ = 10⁻¹² W/m²
Intensity of sound = ?
we know,
Intensity level
=
=
=
= 89 dB
Answer:
The velocity of the penny at 25th second is, v = 245 m/s
Explanation:
Given,
The time taken by the penny to hit the ground is, t = 30 s
The initial velocity of the penny, u = 0 m/s
The velocity of the penny at 25th second, v = ?
Using the II equation of motion, the displacement is given by the formula
<em> S = ut + ½ gt²</em>
= 0 + ½ x 9.8 ( 25²)
= 3062.5 m
Using the III equations of motion
<em>v² = u² + 2gs</em>
Substituting the given values,
v² = 0 + 2 x 9.8 x 3062.5
= 60025
v = 245 m/s
Hence, the velocity of the penny at 25th second is, v = 245 m/s