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

Physics & Space Science

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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

Physics & Space Science

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

Physics & Space Science

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

Physics & Space Science

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

Physics & Space Science