Economic problem arise in all society because?
Resources are mismanaged by leaders
There is no proper planning
Resources are not in adequate supply
The services of economist are not employed
Correct answer is C
Goods and services that satisfy human wants are produced with the help of resources such as land, labour, capital and enterprise. These resources are scarce while wants are unlimited. Due to scarcity of these resources, an economy cannot produce all that goods and services as required by its citizens.
10.0N
20.0N
40.0N
50.0N
Correct answer is C
No explanation has been provided for this answer.
1358mm
957mm
760mm
638mm
Correct answer is D
Let \(h_{Q}\) and \(\rho_{Q}\) be the least length and the density of \(Q_{1}\)
while \(h\) and \(\rho\) are the length and density of mercury respectively.
\(h\times \rho \times g = h_{Q} \times \rho_{Q} \times g\)
\(76cm \times 13.6 \times 10 = h_{Q} \times 16.2 \times 10\)
\(h_{Q} = \frac{76\times13.6\times10}{16.2\times10}\)
\(h_{Q} = \frac{10336}{162}\)
\(h_{Q} \approxeq 63.8cm = 638mm\)
Which electrical device is illustrated above?
a.c. generator
a.c. motor
d.c. generator
d.c. motor
Correct answer is C
No explanation has been provided for this answer.
electroscope
electrophorus
capacitor
cell
Correct answer is C
Most capacitors contain at least two electrical conductors often in the form of metallic plates or surfaces separated by a dielectric medium.