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I. Temperature.II. Density of air moleculesIII. PressureIV. PitchWhich of the above will affect the velocity of sound in the airA. I and II onlyB. II and IV onlyC. I, II and IV onlyD. I, II, III and IV Which of the...

The efficiency of a machine is always less than 100% because theA. work output is always greater than the work inputB. load lifted is always greater than the effort appliedC. effort applied is always greater than the load liftedD. velocity ratio...

The pressure of two moles of an ideal gas at a temperature of 27oC and volume 10-2m3 is[R = 8.313 J mol-1K-1]A. 4.99 x 105 Nm-2B. 9.80 x 103 Nm-2C. 4.99 x 103 Nm-2D. 9.80 x 105 Nm-2 A 2000W electric...

When a box of mass 45kg, is given an initial speed of 5ms-1 it slides along a horizontal floor a distance of 3m before coming to a rest. what is the coefficient of kinetic friction between the box and the floor?...

National consciousness is a mutual feeling of national personality; that is, a mutual understanding that a people assemble shares a typical ethnic/phonetic/cultural foundation. Truly, an ascent in national consciousness has been the initial move towards the formation of a country. National consciousness,...

MEANING OF WORK Work can be define as a legitimate or legal economical activity which is carried out by people living or inhabiting a society in other for them to make money or earn a living to satisfy their need and...

Definitely, an impression is needed for printing and we have known that gravure printing is done from engraved plate or cylinder. The engraving is done by a process similar to photo engraving. All the copy is photographed but don’t copy, that...

The dummy sheet is something also called a layout. Dummy. Or a layout, is done on dummy, or layout sheet. In printed form showing the full size page and all its regular subdivision of columns as well as page number locations,...

The commonwealth is an association of 54 independent or sovereign countries that support each other and work together toward international goals. All the members of commonwealth (except Mozambique and Rwandan ) were formerly part of British empire.  The organization was officially...