A mass is connected by a light string that passes over a pulley of mass M to a mass sliding on a frictionless horizontal surface as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 25.0 cm and a moment of inertia of 1?2 If is 4.00 kg, is 4.00 kg, and M is 4.00 kg, then what is the acceleration of

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A. 4.42

B. 3.92

C. 3.42

D. 3.04

E. 2.96

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B. 3.92

Physics & Space Science

Angular Momentum: A uniform, solid, cylindrical flywheel of radius 1.4 m and mass 15 kg rotates at 2.7 rad/s. What is the magnitude of the flywheel's angular momentum?

A. 40 kg ? m2/s B. 20 kg ? m2/s C. 80 kg ? m2/s D. 60 kg ? m2/s

Which of the following best defines how rems are used for flexible font sizing.

A. A rem gives a maximum and minimum pixel size for headings and context fonts. B. Compression is used to reduce or expand font size to match the user's screen. C. Font size is determined by the user's browser settings, which override the CSS-specified sizes. D. The font size specified in the HTML document's top-level heading becomes the standard.

When an object is spinning in place, it is experiencing:

a. projectile motion. b. circular motion. c. rotational motion. d. vertical motion. e. orbiting motion.

In freezing a saturated liquid, where would you expect conduction heat transfer to be greater, in the saturated solid or the saturated liquid? Is this true for water at normal pressures?

What will be an ideal response?