Select the positive statement that would BEST counteract this negative statement: "I do not have the time to exercise." A. I can
2 answers:
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Answer:
The angular speed of rotation is 1.34 rad/s.
Explanation:
Given that,
Length = 3.40 m
Distance = 5.90 m
Angle = 45.0°
We need to calculate the angular speed of rotation
Using balance equation
Horizontal component
Vertical component
Put the value of T
Put the value into the formula
Hence, The angular speed of rotation is 1.34 rad/s.
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.