Efficiency of heat engine is determined by the ratio of difference in temperature of cold from hot reservoir to the temperature of hot reservoir over temperature of hot reservoir.
Force of the kick or the balls velocity
Answer:
So option (b) will be correct option
Explanation:
We have given that there is a step up transformer in which number of turns in primary coil is 15
That is,
Primary voltage , and secondary voltage
We have to find the number of turns in the secondary \
We know that for the transformer
So option (b) will be correct option
Answer:
<em>The time traveled is 1.39 hrs</em>
Explanation:
Equation of Trajectory of a comet is given as
Here
- h is the specific angular momentum given as
- μ is gravitational parameter whose value is for Venus
- r_p is the perigee distance of parabolic which is 18200 km
- As the path of comet is parabolic so energy is conserved i.e
So h is given as
So for point a where r=24500 km
So for point a where r=39000 km
So as per the Barkers equation
where
where
So
So the time traveled is 1.39 hrs