Answer:
0.00001 %
Explanation:
The distance from satellite = 20000 km
Position range = 2 m
The percentage uncertainty is given by dividing the distance from satellite by the position range of desired accuracy.
Percentage uncertainty is given by
The percentage uncertainty that is required is 0.00001 %
Answer:
4.91 years
Explanation:
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
M = Mass of star
v = Oribital velocity of star
T = Oribital time period
R = Radius of orbit
Mass of the star is
Orbital period of the faster planet is 4.91 years
Answer:
The 60 Ohm bulb would be brighter than the 20 Ohm bulb.
Explanation:
Hi there!
Ohm's Law: where V is voltage, I is current and R is resistance
Power equation:
The greater the power of a bulb, the brighter it is.
The bulbs are connected in series, meaning the the current travelling through each will be the same. Plug Ohm's law into the power equation so we just have I and R:
Because the current stays the same, the bulb with greater resistance will have greater power, hence being brighter. Therefore, the 60 Ohm bulb would be brighter than the 20 Ohm bulb.
I hope this helps!
Answer:
C
Explanation:
Thin film interference is most constructive or most destructive when the path length difference for the two rays is an integral or half-integral wavelength, respectively. That is, for rays incident perpendicularly, 2t = λn, 2λn, 3λn, . . . or 2t = λn/2, 3λn/2, 5λn/2 , .....
We see a constant phase shift off λn/2. Hence option C
Answer:
convex lens have plus power....