Answer:
<em>0.61 m</em>
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Explanation:
The smallest observable length by the radar must be at least equal to or greater than the wavelength of the radar.
using the relationship
c = fλ
where
c is the speed of light in vacuum = 3 x 10^8 m/s
f is the frequency of the wave = 495 MHz = 4.95 x 10^8 Hz
λ is the wavelength = ?
λ = c/f = (3 x 10^8)/(4.95 x 10^8) = <em>0.61 m</em>
Answer:
350 J
Explanation:
Q = Input heat of the steam engine = 2750 J
H = Heat energy given of to the surroundings = 1500 J
W = Work done by the system = 850 J
The energy which the system possesses is known as internal energy
Change in internal energy is given by
The change in internal energy of the system is 350 J
I am pretty sure the answer to this is switching poles
Answer:
I'm pretty sure it's 37.5 joules of energy
Explanation:
hope this helps!