About how many stars are visible on a clear, dark night with the naked eye alone?
A) a few dozen
B) a few hundred
C) a few thousand
D) tens of thousands
E) millions and millions
C
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At t = 0, a wheel rotating about a fixed axis at a constant angular acceleration of ?0.40 rad/s2 has an angular velocity of 1.5 rad/s and an angular position of 2.3 rad. What is the angular position of the wheel at t = 2.0 s?
a. 4.9 rad b. 4.7 rad c. 4.5 rad d. 4.3 rad e. 4.1 rad
Organisms far from each other on the "Tree of Life"
A) are genetically very similar B) are genetically very different C) look very similar to the eye D) are genetically identical
A wave with a long wavelength has a relatively
A) low frequency. B) high frequency. C) both of these D) neither
Angular and Linear Quantities: A bowling ball of mass 7.5 kg and diameter 18 cm rolls without slipping down a 10-m bowling lane with a constant speed 4.3 m/s.(a) Through what angle does the bowling ball turn as it travels the length of the lane?(b) What is the angular speed of the bowling ball?(c) Calculate the maximum radial acceleration that a point on the surface of the bowling ball could have.(d) Calculate the tangential acceleration of a point on the surface of the bowling ball.
What will be an ideal response?