【简答题】Threshold frequency for the photoelectric effect on lithium (f=2.93 eV) is _______________. If the the wavelength of the incident light is 380 nm, the stopping potential is _________________.
【单选题】Users are performing a large volume of inserts and deletes on the application tables in the APPS tablespace. You observe that there are several warning alerts being generated for the APPS tablespace s...
A.
Disable SQL tracing for the APPS tablespace.
B.
Disable logging attributes for the APPS tablespace.
C.
Modify the tablespace to be a dictionary-managed tablespace.
D.
Increase the critical threshold value for the tablespace space usage metrics for the APPS tablespace.
E.
Increase the warning threshold value for the tablespace space usage metric for the APPS tablespace.
【单选题】Users are performing a large volume of inserts and deletes on the application tables in the APPS tablespace. You observe that there are several warning alerts being generated for the APPS tablespace s...
A.
disable SQL tracing for theAPPS tablespace
B.
disable logging attribute for the APPS tablespace
C.
modify the tablespace to be a dictionarymanaged tablespace
D.
increase the critical threshold value for the tablespace space usage metrics for the APPS tablespace
E.
increase the warning threshold value for the tablespace space usage metrics for the APPS tablespace
【单选题】A student hypothesized that sounds of any intensity at a frequency of 105 Hz would be painful for humans to hear. Do the data in the figure support this hypothesis?
A.
Yes, because the threshold of pain is relatively constant with changes in frequency.
B.
Yes, because as frequency increases above 105 Hz, the threshold of pain increases.
C.
No, because humans cannot hear sounds at 105 Hz.
D.
No, because the threshold of pain is relatively constant with changes in frequency.