log_35× log_2527=………….
A.3/2 B.2/3 C.5/27 D.3/25 E. 5×27
10.If x=log_ba,y=log_cb,z=log_ac, then xyz=…………
A. 0 B. 1 C.-1 D. abc E. a+b+c
- If log2=a, then =…….
A.a^2 B.2.5a C.1+a D.1-a E.1/2 a
12.If log2=a, log3=b, then log144=………….
A. a^4 b^2 B.4a+2b C.8ab D. a^2 b^2 E. None of them - 3+log_25=……..
A.log_240 B.log_24 C.log_2150 D. log_215 E.log_260 - log0.01=………
A. 2 B. -2 C.1/2 D.-1/2 E.0 - log_240+log_20.1+log_20.25=……….
A. 0 B. 1 C.2 D. 3 E.4 - log_2〖2√2〗=………
A. 2/3 B.1 C.1 1/2 D.-3/2 E.-2/3
The gravitational force is a ……… range force .
(14) Weight has both magnitude and ………. .
(15) The SI unit of weight is ……… .
(16) Mass is a scalar quantity and its SI unit is ……… .
(17) The gravitational force interact between ………. .
(18) The weight of 50 kg mass is ……….. .
(19) The nuclear force is a ……. range force.
(20) The ratio of mass to volume is defined as ……… .
(21) The density of ice is ……….. than that of water.
(22) The symbol of density is ρ and it is a …….. quantity.
(23) The SI unit for pressure is …….. .