Answer: HP = Horse Power.
Explanation: it is the unit given to tell the motor's particular power and 1hp = 746 watts.
Answer:
D
Explanation:
reactants have higher potential energy and energy is absorbed
Answer:
option (b)
Explanation:
Mass of moon = m
Mass of earth = 81.25 x mass of moon = 81.25 m
Radius of moon = r
radius of earth = 3.668 x radius of moon = 3.668 r
Frequency on earth = 2 Hz
Let the frequency on moon is f.
The formula for the frequency is given by

The value of acceleration due to gravity on earth is g.
ge = G Me / Re^2
ge = G x 81.25 m / (3.668 r)^2
ge = 6.039 x G m / r^2 = 6.039 x gm
ge / gm = 6.039
Now use the formula for frequency



fm = 0.814 Hz
The whole of the data that you have researched on
Answer:
(a) 2800 J
(b) 31.28 %
Explanation:
Heat intake, Q1 = 8950 J
Heat discard, Q2 = 6150 J
(a) Work = intake heat energy - discarded heat energy
W = Q1 - Q2 = 8950 - 6150 = 2800 J
(b) Efficiency = 1 - Q2 / Q1
Efficiency = 1 - (6150 / 8950) = 0.3128 = 31.28%