Si se desea construir un circuito con poca resistencia se debe colocar: En serie Mixto Paralelo Ninguna de las anteriores
1 answer:
Answer:
Parallel combination
Explanation:
When the two resistances are connected in parallel then the equivalent resistance is
To get the minimum resistance of a circuit, the circuit components should be connected in parallel combination.
In the parallel combination, the voltage across each resistor is same and the current is divided in every resistance according to the resistances.
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Answer:
(a). The value of angular speed of the merry-go-round = - 5.82 ×
(b). The linear speed of the girl after the rock is thrown V = -1.89 ×
Explanation:
Given data
Mass of the girl = 50.6 kg
Mass of merry-go-round = 827 kg
Radius r = 3.72 m
The speed of the rock relative to the ground = 7.82
(a). The angular speed of the merry-go-round is given by
Put all the values in above formula
= - 5.82 ×
This is the value of angular speed of the merry-go-round.
(b). The liner speed of the girl is given by
⇒ V = r ×
⇒ V = - 3.72 × 5.82 ×
⇒ V = -1.89 ×
This is the linear speed of the girl after the rock is thrown.
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Answer:
2.345 km
Explanation:
Step 1: Find conversion
1 km = 1000m
Step 2: Set up dimensional analysis
Step 3: Multiply and cancel out units
meters and meters cancel out.
We are left with km, which is what we want.
2345/1000 (base 10 system rules) = 2.345 km
Explanation:
The frequency of the engine is given by :
We have, the engine increases its performance from zero to 2700 rpms.
Frequency,
The time period of the engine is given by :
T = f/f
So,
Hence, the required frequency and the period is 45 cycles/second and 0.023 seconds respectively.