Multiple Choice
A lock requires a three-number sequence to open,with each number ranging from 1 to 10.If a thief requires three seconds to try any one combination,what is the maximum number of seconds before the thief opens the lock?
A) 310
B) 103
C) 3 × 103
D) 106
Correct Answer:
Verified
Correct Answer:
Verified
Q13: Why do astronomers search for signals of
Q14: What are the four ways in which
Q15: How has the discovery of extremophiles changed
Q16: What defines the habitability zone around a
Q17: According to our present astronomical understanding,what astronomical
Q19: Which of the following provides the basic
Q20: The development of antibiotic resistance among bacterial
Q21: Scientists who study life on Earth in
Q22: At present,conclusions about extraterrestrial life are based
Q23: What basic characteristic of life is illustrated