Acceleration occurs whenever the direction or the speed changes
Answer:
V = 6.3 m/s
Explanation:
Given:
m₁ = 2 kg
m₂ = 18 kg
m₃ = 9 kg
V₁ = 10 m/s
V₂ = 8 m/s
V₃ = 2 m/s
__________
V - ?
Let us write the momentum conservation law for an inelastic impact:
m₁·V₁ + m₂·V₂ + m₃·V₃ = (m₁ +m₂ + m₃) ·V
Cart speed after interaction:
V = ( m₁·V₁ + m₂·V₂ + m₃·V₃ ) / (m₁ +m₂ + m₃)
V = (2·10 + 18·8 + 9·2) / ( 2 + 18 + 9) = 182 / 29 ≈ 6.3 m/s
That's true.
They're radio waves, at the frequency of 2.45 GHz (in all microwave appliances manufactured in the US).
Answer:
a spark
Explanation:
a spark would be the most smartest
Answer:
Explanation:
Given:
- the voltage of the source,
- distance of separation between the capacitor plates,
- energy of the capacitor,
Assuming that there is free space between the plates, so the permittivity, 
<u>We have the energy stored in a capacitor as:</u>
