Answer:
128 N
Explanation:
Power can be defined as

<em>F</em> is the force and <em>v</em> is the velocity.

According to the question, <em>P</em> = 5.15 hp = 5.15 × 746 W.
<em>v</em> = 30 m/s

Since most of the power is used to compensate for the energy transformations due to friction forces, the total frictional is 128 N
The answer is Uranus, as it has a tilted axis.
Answer:
D if I'm incorrect then sorry.
Explanation:
Answer:
Option c that it means cm/year.
Explanation:
Nm means nanometer, 1x10^9m
Km/s^2 is acceleration
h.. it may be height
Answer:
The focal length of the lens must be 27.3cm
Explanation:
Image distance= -75 cm
Object distance= 20.0cm
From:
1/v + 1/u = 1/f
-1/75+ 1/20 = 1/f
11/300= 1/f
f= 300/11
f= 27.3cm
The focal length of the lens must be 27.3cm