A meter stick balances at the 50.0-cm mark. If a 50.0-g object is placed at the 90.0-cm mark, the stick balances at the 61.3-cm mark. What is the mass of the meter stick?
A) 127 g
B) 178 g
C) 89.7 g
D) 32.6 g
E) 73.4 g
A
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A uniform disk, a uniform hoop, and a uniform solid sphere are released at the same time at the top of an inclined ramp. They all roll without slipping. In what order do they reach the bottom of the ramp?
A) disk, hoop, sphere B) hoop, sphere, disk C) sphere, disk, hoop D) sphere, hoop, disk E) hoop, disk, sphere
An astronaut on a spaceship moving at 0.927c says that the trip between two stationary stars took 7.49 y. How long does this journey take as measured by someone at rest relative to the two stars?
A) 20.0 y B) 2.81 y C) 4.05 y D) 22.1 y
The strong nuclear force acts only on neutral particles
Indicate whether the statement is true or false
Plate ________ is the process by which convection within the mantle reforms the crust above it
Fill in the blank(s) with correct word