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What is fact less fact table?
A fact Less fact is a fatc without numeric or aggregatable value.Used to collect STATS in table
What does Db on the periodic table of elements stand for?
dubnium
Is 85 dB A the same as 85 dB?
The weighting filter A takes off low frequencies. So the measured value in dBA must be less than in dB. Look up at "A-weighting - Wikipedia".
A bar chart showing the loudness in dB of different activities?
A bar chart can provide a visual representation of the loudness in dB for activities such as concerts, traffic noise, and normal conversation. Each activity can be represented by a labeled bar with corresponding dB levels on the y-axis, giving a clear comparison of their loudness levels. This chart helps easily understand the differences in loudness between various activities.
What is the physical significance of negative power in db?
dB expresses the ratio of two powers.Negative dB doesn't mean negative power.It means a negative ratio . . . less power compared to more power,or the power decreased.
What is the legal db of a muffler in the UK?
A lot less than my Harley here in the US
Is it possible to have a dB value less than 0dB?
Sure, after all it is a logarithmic scale.
Is Table tennise a sport?
yes, table tennis is in fact, a sport.
What are the notes for someone like you by Adele for the keyboard?
A Db E Db A Db E Db A Db E Db A Db E Db Ab Db E Db Ab Db E Db Ab Db E Db Ab Db E Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db fqggbegjg2y7gdsjnjnagydsaytdgtewydtwfe
What is OSHA's noise limit?
Effectively, OSHA has two noise limits that apply simultaneously. First, employees may not be exposed to a full-shift (8-hour) time-weighted average noise level of 90 dB (deciBells) or more. This translates to a limit of: 90 dB averaged over an 8 hour day, or 95 dB for 4-hours as long as the rest of the day does not involve exposure to noise greater than 90 dB, or 100 dB for 2 hours, 105 dB for 1-hour, 110 dB for 30 minutes, 115 dB for 15 minutes, and no continuous noise louder than 115 dB In addition, employees who have 8-hour exposures of 85 dB or more must be placed in a Hearing Conservation Program and, in some cases must be provided with hearing protection. The table is a bit different because sounds from 80 dB and above are used in the assessment. This translates to a criterion level of: 85 dB averaged over an 8-hour day, or 90 dB for 4-hours for 4-hours as long as the rest of the day does not involve exposure to noise greater than 80 dB, or 95 dB for 2 hours, 100 dB for 1 hour, 105 dB for 30 minutes, 110 dB for 15 minutes
How many deciBel less than 1W is 4 mW?
4 mW is 24 dB less than 1 watt. (-24 dBW)
What are characteristics of fact table?
Fact table contain at least one fact column or measurement column that represent sum or average. It contains primary keys of dimension tables as foreign keys.
