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4 years ago

The motion map shows an object’s position and velocity at given times.

Physics

2 answers:

Dennis_Churaev [7]4 years ago

8 0

the answer is:

A: <u>by adding vectors that are all the same length and placing them above the current top row of vectors</u>

you're welcome

Sladkaya [172]4 years ago

4 0

Answer:

by adding vectors that gradually increase in length and placing them above the current top row of vectors

Explanation:

Since initially the motion map shows that length of vectors are gradually decreasing which means that the acceleration vector is opposite to the velocity due to which it is continuously decreasing with time.

Now once it will take turn then the velocity and acceleration both are in same directions.

So here we will have motion map is like that the vectors will have length gradually increasing which shows that after taking turn the acceleration and velocity is in same directions.

so correct answer will be

by adding vectors that gradually increase in length and placing them above the current top row of vectors

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Nesterboy [21]

Answer:

12.99 Hz

Explanation:

Resonance is said to occur in an RLC circuit when maximum current is obtained from the circuit. Hence at resonance; XL=XC and Z=R.

XL= inductive reactance, XC= capacitive reactance, Z= impedance, R= resistance

The resonance frequency is given by;

fo= 1/2π√LC

L= 3×10^-3 H

C= 0.05 F

π= 3.142

Substituting values;

fo= 1/2×3.142√3×10^-3 × 0.05

fo= 12.99 Hz

Therefore the resonance frequency of the RLC circuit is 12.99 Hz

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Given

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