Answer:
500 N
Explanation:
Because even if he lift one foot his weight will be same as the pressure applied on the scale will be the same and will not change it is not that the scale measures each foot separately
Rutherford was the first person to make a model of an atom that was mostly accurate, the only thing is in his early model there were electrons and protons, at this time Rutherford did not know of a neutron and was not discovered until 1932.<span />
Explanation:
It is given that,
Radius of earth, r = 6371 km
An earth satellite moves in a circular orbit above the Earth's surface, d = 561 km
So, radius of satellite, R = 6371 km + 561 km = 6932 × 10³ m
Time taken, t = 95.68 min = 5740.8 sec
(a) Speed of the satellite is given by :

d = distance covered
For circular path, d = 2πR

v = 7586.92 m/s
(b) Centripetal acceleration is given by :



Hence, this is the required solution.
The big 'M' in MHz means 'million'.
So 49.830 MHz means <em>49,830,000 Hz.</em>
Explanation:
velocity = wavelength × frequency => v= f1 × λ => f1 = v/ λ
λ = stays the same
v = doubles
2v = f2 × λ
2v/λ = f2
now ,
f2/f1= 2vλ/ vλ = 2
f2 = 2f1
therefore frequency is doubled