A uniform solid disk is released from rest and rolls without slipping down an inclined plane that makes an angle of 25° with the horizontal. What is the forward speed of the disk after it has rolled 3.0 m, measured along the plane?

A) 2.0 m/s
B) 3.5 m/s
C) 4.1 m/s
D) 5.7 m/s
E) 6.3 m/s


C

Physics & Space Science

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RLC Circuits: A 120-V rms signal at 60.0 Hz is applied across a series combination of a 30.0-mH inductor and a resistor. If the rms value of the current in this circuit is 0.600 A, what is the resistance of the resistor?

A. 80.0 ? B. 268 ? C. 143 ? D. 200 ? E. 30.0 ?

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The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively. An object is placed at 0.30 cm from the objective lens and the image of this object is viewed with the eyepiece adjusted for minimum eyestrain

The near-point distance of the person using the microscope is 25.0 cm. What is the final magnification of the microscope? A) -190 B) -240 C) -300 D) -310 E) -470

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Two bodies revolve around their common center of mass, the balance point of the system

Indicate whether the statement is true or false

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When hydrogen, from Group 1A, unites with chlorine, it forms a(n) ______________ compound

a. ionic b. metallic c. covalent d. organic

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