Noting the turnoff mass in a star cluster allows you to determine its:
A) distance.
B) radial velocity.
C) age.
D) total mass.
E) number of stars.
C
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A man is holding an 8.00-kg vacuum cleaner at arm's length, a distance of 0.550 m from his shoulder. What is the torque on the shoulder joint if the arm is horizontal?
A) 0.242 Nm B) 4.40 Nm C) 43.2 Nm D) 14.5 Nm E) 0 Nm
An astronaut applies a force of 500 N to an asteroid, and it accelerates at 3.00 m/s2 . What is the asteroid's mass?
a. 1500 kg c. 600 kg b. 135 kg d. 167 kg
The number of overtones, and their relative intensities, is associated with what property of the tone generated by a musical instrument?
a. quality b. interference pattern c. range d. attack pattern
Initially, scientists detected lower than the expected number of neutrinos from the Sun
a. True b. False Indicate whether the statement is true or false