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choli [55]
3 years ago
13

While driving, which of the following principles should be used to keep the appropriate distance between your vehicle and the ve

hicle in front of you?
A Golden rule
B Two-car length rule
C Maximize the distance between the two vehicles
D Minimize the distance between the two vehicles
Advanced Placement (AP)
1 answer:
ivanzaharov [21]3 years ago
5 0
B Two-car length rule
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A conical water tank is 24 ft high and has a radius of 10 ft at the top. If water flows into the tank at a rate of 20 cubic feet
Akimi4 [234]

Answer:

0.027 cubic ft/min

Explanation:

Volume of water is V=V(t) Depth of water is h=h(t)

The relationship between V and h is

V=π/3.r2.h

Let

h0= the height of the cylinder = 24ft, r0= the radius of the opening = 10ft.

Since water level (h) rise with respect to flow rate we find an expression for r and substitute into V

r/h = r0/h0= 10/24 = 5/12

r = (5/12) h,

Substitute for r in V

so,

V=1/3.π.(h2)square = 1/3.π. 25/144.(h3)

When

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and dV/dt = 20ft3/min

,

dV/dt =1/3*π*25/144*h3*(dh/dt)

20ft3/min= 1/3*π* 25/144*h3*(dh/dt)

20 = 1/3*π*(16)3.(dh/dt)

Make dh/DT subject of formula

dh/dt=(20*3*144)/(25*π*4096) = 8640/321740.8

=

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3 0
3 years ago
Explain an example of a Progressive reform at either the local, state, or national level in each of the following areas:
julsineya [31]

Answer:

An example of a Progressive reform at either the local, state, or national level is described below in details.

Explanation:

The principal purposes of the Progressive movement were discussing difficulties generated by urbanization, industrialization, political corruption, and immigration. The movement essentially targeted political organizations and their administrators. Reformers desired legislation to defend workers and poor people, to reform administration, and to regulate business.

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A physical quantity is a quantity that an individual can measure and it also has a unit. Examples of some physical measurement and their corresponding units include:

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• Length = Meter

• Mass = Kilogram

• Electric current = Ampere

• Temperature = Kelvin

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3 years ago
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