Advantage: It's often cleaner (better for the environment)
Disadvantage: The initial cost can be very expensive, the transition may also be difficult.
I think it's C. if we're talking about a rover.
But if it's a rocket that's computerized and automatic (synonym of unmanned)... Then it's B.
<u>Answer</u>
25 Volts
<u>Explanation</u>
Ohm's law states that the current flowing though a fixed resistor is directly proportional to the voltage drop across it.
V ∝ I
V = RI Where R is the resistance.
V = 0.5 × 50
= 25 V
Shock waves music sound sonic boom
Answer:
Speed = 2.4 m/s
Explanation:
As given in question,
Frequency of the wave = 4 Hz
The wavelength of the wave = 60 cm
As we know,
1 cm = 0.01 m
=>60 cm = 0.6 m
So, the wavelength of the wave = 0.6 m
speed of wave = wavelength x frequency
= 0.6 m x 4 Hz
= 2.4 m/s
Hence, the velocity of wave vibrating with 4 Hz frequency and wavelength of 60 cm is 2.4 m/s.
