A certain coin has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its density?
A) 29.1 × 103 kg/m3
B) 7.26 × 103 kg/m3
C) 9.25 × 103 kg/m3
D) 2.31 × 103 kg/m3
E) 71.2 × 103 kg/m3
B
You might also like to view...
After a ball tossed upward leaves your hand, the force of gravity on it
A) no longer acts. B) gradually diminishes. C) gradually increases. D) remains constant. E) changes direction.
Transformers: A transformer is a device that normally
A. operates on either dc or ac. B. operates only on ac. C. operates only on dc.
Suppose we put a 0.3-kg hunk of ice at 0°C into an insulating thermos bottle filled with 1000 g of water at 20°C. What will be the system’s final temperature?
A. Below 0°C B. Almost exactly 0°C C. Somewhat above 0°C, but below 10°C D. Very roughly 10°C E. Somewhat below 20°C, but above 10°C F. Almost exactly 20°C
The universe is only seconds old, a million trillion seconds in fact. In powers of 10, this number is
A) 1015. B) 1017. C) 1019. D) 1021. E) None of the above.