High temperature gives the hydrogen atoms enough energy to overcome the electrical repulsion between the protons. Fusion requires temperatures of about 100 million Kelvin (approximately six times hotter than the sun's core).
Answer:
lambda = 343 m/s divided by 340 Hz = 1.009 seconds
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True, an object at rest stays and rest and an object in motion stays in motion
Answer:
8050 J
Explanation:
Given:
r = 4.6 m
I = 200 kg m²
F = 26.0 N
t = 15.0 s
First, find the angular acceleration.
∑τ = Iα
Fr = Iα
α = Fr / I
α = (26.0 N) (4.6 m) / (200 kg m²)
α = 0.598 rad/s²
Now you can find the final angular velocity, then use that to find the rotational energy:
ω = αt
ω = (0.598 rad/s²) (15.0 s)
ω = 8.97 rad/s
W = ½ I ω²
W = ½ (200 kg m²) (8.97 rad/s)²
W = 8050 J
Or you can find the angular displacement and find the work done that way:
θ = θ₀ + ω₀ t + ½ αt²
θ = ½ (0.598 rad/s²) (15.0 s)²
θ = 67.3 rad
W = τθ
W = Frθ
W = (26.0 N) (4.6 m) (67.3 rad)
W = 8050 J
Answer:
The pressure difference between two pipe is 
Pa
Explanation:
Density 
Speed in one pipe 
Speed in second pipe 
According to the bernoulli equation,
The pressure difference is given by,
![P_{2} - P_{1} = \frac{1}{2} \times 1165 \times[ (4.53)^{2}- (1.77)^{2}]](https://tex.z-dn.net/?f=P_%7B2%7D%20-%20P_%7B1%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%201165%20%5Ctimes%5B%20%284.53%29%5E%7B2%7D-%20%281.77%29%5E%7B2%7D%5D)
Pa
Therefore, the pressure difference between two pipe is Pa
