A rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How many kilograms of material can be loaded onto the box before it sinks in a lake having water of density 1000 kg/m3?
A) 0.50 × 103 kg
B) 1.5 × 103 kg
C) 2.5 × 103 kg
D) 3.5 × 103 kg
C
You might also like to view...
The power factor of an RL circuit with a 100-? resistor and a certain inductor is 0.60. What is the impedance of the circuit?
A) 170 ? B) 85 ? C) 340 ? D) 100 ? E) 60 ?
Velocity Addition: A spaceship traveling at 0.50c away from Earth launches a secondary rocket in the forward direction at 0.50c relative to the spaceship. As measured by Earthlings, how fast is the secondary rocket moving away from Earth?
A. 0.90c B. 0.50c C. 0.80c D. 0.70c E. c
Where are the globular clusters found?
A. Primarily in the disk, with a few in the bulge B. Anywhere and everywhere- nowhere in particular C. In the solar neighborhood D. In the halo, spherically distributed around the Milky Way center E. Hiding within Bok Globules and molecular clouds
Radio maps of the spiral arms of our galaxy
a. reveal that our galaxy is a grand design spiral. b. map the location of hot O and B stars by the radio radiation they emit. c. reveal that the spiral arms are winding up and growing closer together. d. reveal that the Sun is currently located in the center of a spiral arm. e. map the location of dense neutral hydrogen clouds.