What is the self-inductance in a coil that experiences a 2.30-V induced emf when the current is changing at a rate of 160 A/s?

a. 6.96E–1 H
b. 3.31E–2 H
c. 160 H
d. 1.44E–2 H
e. 3.68E+1 H


d

Physics & Space Science

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One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits

The hurricane rapidly decreases the external air pressure to 0.910 atm. A square window in an outside wall of the house measures 2.02 m on each side. What net force (directed outwards) is exerted on this window? (1 atm = 1.01 × 105 Pa.) A) 5.37 × 105 N B) 5.14 × 104 N C) 4.53 × 104 N D) 4.78 × 105 N

Physics & Space Science

Water pressurized to 3.5 × 10^5 Pa is flowing at 5.0 m/s in a horizontal pipe which contracts to 1/3 its former area. What are the pressure and velocity of the water after the contraction?

a. 2.5 × 10^5 Pa, 15 m/s b. 3.0 × 10^5 Pa, 10 m/s c. 3.0 × 10^5 Pa, 15 m/s d. 4.5 × 10^5 Pa, 1.5 m/s e. 5.5 × 10^5 Pa, 1.5 m/s

Physics & Space Science

You observe a star in the disk of the Milky Way, and you want to plot the star on an H-R diagram. You will need to determine all of the following, except the

A) spectral type of the star. B) distance to the star. C) apparent brightness of the star in our sky. D) rotation rate of the star.

Physics & Space Science

For Example 10-15, if radiant effects of 95 Btu/hr?ft^2 due to the sun shining are included, determine the amount of decrease in the ice thickness over the two hours.

What will be an ideal response?

Physics & Space Science