An artificial sattelite is moving in a circular orbit of radius 42250km calculate its speed if it takes 24 hours to revolve arou
1 answer:
Answer:
v = 11061.02 km/h
Explanation:
Given that,
The radius of the circular orbit, r = 42250 km
Time taken to revolve around the Earth, t = 24 hours
We need to find the speed of the satellite. We know that, speed of an object is equal to total distance traveled divided by the time taken. So,
Put all the values,
So, the speed of the satellite is equal to 11061.02 km/h.
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Answer:
Part a)
Q = 3198 J
Part b)
It is compression of gas so this is energy transferred to the gas
Explanation:
Part a)
Energy transfer during compression of gas is same as the work done on the gas
In isothermal process work done is given by the equation
now we know that
n = 1.4 moles
T = 27 degree C = 300 K
now we have
Part b)
It is compression of gas so this is energy transferred to the gas
Answer:
1. The number of turns on the secondary output is 18
2. The root mean square power delivered to the transformer is 48 Watts.
Explanation:
A transformer is an electronic device that can be used for increasing or decreasing the value of a given voltage. It consists of primary coils and secondary coil of a definte number of turns. When voltage flows in the primary coil, it induces voltage in the secondary coil. The two types are: step-up and step down transformers.
1. For a given transformer,
=
where is the value of the induced voltage in the secondary coil,
is he voltage in the primary coil, and
is the number of turns of the secondary coil,
is the number of turns in the primary coil.
From the question,
= 9.0 V,
= 120 V,
= 240,
= ?
So that,
=
=
= 18
The number of turns on the secondary output is 18.
2. =
×
= 0.4 × 120
= 48 W
The rms power delivered to the transformer is 48 Watts.