3 years ago

1. Juan wants to measure the current traveling through the straight wire in his experiment. He

Physics

1 answer:

olga2289 [7]3 years ago

5 0

Answer:

galvanometer

Explanation:

A galvanometer is an instrument that can detect currents.
Juan wants to measure the current traveling through the straight wire in his experiment. He uses a galvanometer as his tool. He places the wire in between two permanent magnets to measure the current created by the magnetic field.

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An airplane is flying at 300 mi/h at 4000 m standard altitude. As is typical, the air velocity relative to the upper surface of

posledela

Answer:

57330.17766 Pa

Explanation:

$P_1$ = Pressure at 4000 m = 61660 Pa

$\rho$ = Density at 4000 m = 0.8194 kg/m³

(Values taken from table of properties of air)

$V_1$ = Velocity of jet = $300\times \frac{1609.34}{3600}=134.11\ m/s$

$V_2$ = Velocity at max thickness

$V_2=1.26V_1=1.26\times 134.11=168.9786\ m/s$

From Bernoulli's equation

$P_1+\frac{1}{2}\rho V_1^2=P_2+\frac{1}{2}\rho V_2^2\\\Rightarrow P_2=P_1+\frac{1}{2}\rho V_1^2-\frac{1}{2}\rho V_2^2\\\Rightarrow P_2=61660+\frac{1}{2}\times 0.8194\times 134.11^2-\frac{1}{2}\times 0.8194\times 168.9786^2\\\Rightarrow P_2=57330.17766\ Pa$