5m/s
100m
Explanation:
Average speed is sum of distance distance traveled in a given time by a body.
Average speed=
Distance = 20m
time = 4s
Average speed = = 5m/s
For the spaceship;
Distance covered = speed x time
Speed = 50m/s
time = 2s
Distance covered = 50 x 2 = 100m
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Average speed brainly.com/question/5063905
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Answer:
The frequency of the standing wave in the second case is higher than that in the first case
Explanation:
The frequency and wavelength of a wave are related.
The moment you sliced the bottle, you've reduced the wavelength of the bottle.
When wavelength decreases, frequency increases and vice versa.
So, When frequency
increases in the second case, more wave crests pass a fixed point each second. That means
the wavelength shortens. So, as frequency increases, wavelength
decreases. The opposite is also true—as frequency decreases,
wavelength increases.
Answer:
The equation of current is
Explanation:
Resistance, R = 12 ohm
Inductance, L = 0.06 H
E (t) = 12 cos (120 t)
Compare with the standard equation,
So, the inductive reactance is
XL = w L = 120 x 0.06 = 7.2 ohm
The impedance of the circuit is
The current leads by 90degree so the equation of current is
The Answer Is - 0.58 Kilogram's
Hope This Help's