Answer:
The solar radiation is one of the main factors that shapes the climate all over the globe, so the climate differs with the less or more solar radiation it gets. The polar regions are cold, this is due to the fact that the solar radiation in here is very obscure, because the solar radiation falls at a very wide angle the heat is dispersed over larger area, thus the land gets very little warmth. The Equator, on the other hand, gets direct solar radiation, the sun light falls at a 90 degrees angle or close to it, so the radiation is more concentrated on a smaller area, thus the warming is bigger.
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We know follwing formula
F=a*m
where F is RESULTANT force, a is acceleration and m is mass. We can transform that formula to obtain a, so
F=a*m /:m divide both sides by m
Now we have to calculate resultant force acting.
We know that Dale and Alex push on opposite direction so we have to put minus in front on one of the forces and add it.
40+(-32)=40-32=8 [N] - resultant force acting on the couch
Now we have all necessary date, we can substitute.
a=
- its the result
Answer:
a ave = ( v1x - v0x ) i/Δt + v1y j/Δt
Explanation:
Answer:
Object will float.
Explanation:
Total force on the body = Weight of body + Buoyancy force on body.
Weight of body = 15 N downwards = 15 N
Buoyancy force on body = 17 N upwards = -17 N
Total force on body = 15 - 17 = -2 N = 2 N upwards
So, the body will float.
Object will float.
Answer:
(a) right
(b) λ = 4.65m
(c) v = 1519m/s
(d) f = 327Hz
Explanation:
The characteristic sinusoidal pressure fluctuation equation for a wave traveling to the right is given as
P(x,t) = BkASin(kx-ωt)
Where
B = Bulk modulus
k = wave number
A = displacement amplitude
x = position on the x-axis
ω = angular frequency
t = time t
(a) the wave is travelling to the right
(b) from the given equation
ΔP(x,t) = (24.0 / r) sin(1.35r - 2050t)
1.35 compares with k
So k = 1.35rad/m
And k = 2π/ λ
λ = 2π/k = 2π/1.35 = 4.65m
(c) ω =kv
From the given equation ω = 2050 rad/s
v = ω/k = 2050/1.35 = 1519m/s
(d) f = v/λ =1519/4.65 = 327Hz