A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec2 acquires an angular velocity of 5.00 rad/sec. The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration. What is the angular distance traveled by a point 4.00 cm from the center, at the time 25.0 seconds from the start?
A. 107 rad
B. 193 rad
C. 205 rad
D. 237 rad
E. 274 rad
A. 107 rad
Physics & Space Science
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As you recede from a steady light source, the wavelength of the emitted light appears
A) longer. B) shorter. C) the same.
Physics & Space Science
A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second package. How far apart will the two packages land on the ground if air resistance is negligible?
A) 100 m B) 160 m C) 320 m D) 180 m
Physics & Space Science
Stars are born from the interstellar medium, and aging or dying stars return gas and dust back into the interstellar medium
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
Reorder the spectral sequence to include the L and T dwarfs. What is the new sequence?
What will be an ideal response?
Physics & Space Science