Kinetic energy than parked
The train travells at he speed of 225 km/2.5h
now
225km=225000m
2.5 hr=150min=9000s
=>avg sp of train is=225000/9000s=25m/s
Current = charge/time = (2 c)/(0.00024 sec)= 8,333 Amps !
Answer:
The frequency of these waves is
Explanation:
Given that,
Wavelength = 6.6 km
Distance = 8810 km
Time t = 8.67 hr
We need to calculate the velocity of sound
Using formula of velocity
Where, D = distance
T = time
Put the value into the formula
We need to calculate the frequency
Using formula of frequency
Put the value into the formula
Hence, The frequency of these waves is
Net force = (mass) x (acceleration) . . . . that's Newton's 2nd law of motion
Net force = (15 kg) x (10 m/s²)
<em>Net force = 150 Newtons</em>