Question 1

A mass attached to a spring oscillates with a period of 3.60 s. If the mass starts from rest at x = 4.50 x 10^-2m and time t= 0, where is it at time t = 8.80 s? Express your answer in centimeters.

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Question 3

Two people relaxing on a deck listen to a songbird sing. One person, only 3.00 from the bird, hears the sound with an intensity of 1.4010⁵ W/m². How far could a second person be from the bird described and still be able to hear it? Express your answer in kilometers, with three significant figures. Remember that the lowest intensity the human year can perceive is 1.010^-12 W/m².

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Question 4

What is the magnitude of the electric field produced by a charge of magnitude 6.44Cat a distance of 27.0 cm? Express your answer in kN/C with at least three significant figures.

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Question 6

A wire with a current of 4.00Ais at an angle of 38.0⁰relative to a magnetic field of 0.80T. Find the force exerted on a 2.80mlength of the wire, in newtons.

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Question 7

Two long, straight, parallel wires are separated by a distance of 8.60cm. One wire carries a current of 1.60A,the other carries a current of 4.34A in the same direction. Calculate the strength of the magnetic field halfway between the wires, in microteslas.

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Question 10

An object that is 2.80 cm tall is placed 28.5 cm in front of a converging lens of focal length 13.4 cm. How tall is the image (in centimeters, to three significant figures)?

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Question 11

An object that is 1.40 cm tall is placed 17.5 cm in front of a diverging lens of focal length 23.8 cm. How tall is the image (in centimeters, to three significant figures)?

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