Answer:
72 m/s
Explanation:
D1 = 3 cm, v1 = 2 m/s
D2 = 0.5 cm,
Let the velocity at narrow end be v2.
By use of equation of continuity
A1 v1 = A2 v2
3.14 × 3 × 3 × 2 = 3.14 × 0.5 ×0.5 × v2
v2 = 72 m/s
Answer:
31302 Volts and 55/111 Amps (≈0.5)
Explanation:
Secondary voltage / 141 = 1110 / 5
Secondary voltage = (1110*141) / 5
Secondary voltage = 31302
Amperage = 110/ (31302/141) = 55/111
Answer:
Explanation:
The energy of Mass-Spring System the sum of the potential energy of the block plus the kinetic energy of the block:
Where:
There are two cases, the first case is when the spring is compressed to its maximum value, in this case the value of the kinetic energy is zero, since there is no speed, so:
The second case is when the block passes through its equilibrium position, in this case the elastic potential energy is zero since 
, so:
Now, let's find the energy of the system when the block is replaced by one whose mass is twice the mass of the original block using the previous data:
Where in this case:
Therefore:
Who pays the income tax, the payroll tax, the estate and gift taxes? Who
bears the burden of the gasoline and tobacco taxes? If Congress were to
raise this tax rate, or lower that tax deduction, who would gain and
who would lose? The outcomes of the political battles over changes in
the tax system often hinge on the answers to such questions. This paper
will discuss the economic consequences of taxation and the factors that
influence where the burden of various taxes really falls. It will review
some of the discussions in the economic literature. Finally, it will
suggest that a shift to a markedly different type of tax system would
benefit all players in the economy.
