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4 years ago

A 100-year flood is the flooding elevation that has a one percent chance of happening each year. Why is the name misleading

1 answer:

5 0

One percent annual chance of flooding does not mean it will happen with absolute certainty once every 100 years. Just that the expected value of a flood in 100 years is one.

As an example, heads has a 50% chance of happening every coin flip. With 2 coin flips, the expected value is one. However, it would be a misnomer to call "heads" a 2-flip outcome.

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Three Carnot engines operate between the following temperature limits.

Kipish [7]

Answer:c>a>b

Explanation:

Given

All the engine extracts same amount of heat(Q) from High-temperature reservoir

For a) 400 and 500 K

$\eta _{engine}=1-\frac{T_L}{T_H}$

$\eta _{engine}=\frac{work\ supplied}{heat\ supplied}$

$1-\frac{400}{500}=\frac{W_a}{Q}$

$W_a=\frac{Q}{5}$

For b)500 K and 600K

$1-\frac{500}{600}=\frac{W_b}{Q}$

$W-b=\frac{Q}{6}$

For c) 400 K and 600 K

$1-\frac{400}{600}=\frac{W_c}{Q}$

$W_c=\frac{2Q}{3}$

So c will give the highest amount of work

c>a>b

6 0

4 years ago

Describe the energy transfer when you touch a block of ice with your hand

nydimaria [60]

Answer:

Thermal energy always flows from the warmer object to the colder object. This causes your hand to get cold, while the ice absorbs your heat and melts.

8 0

3 years ago

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Calculate the work done by a person who exerts a force of 200.0 N in the horizontal direction on a box that moves 10.0 meters al

Westkost [7]

Answer:

the work done by a person is 1,732 J

Explanation:

The computation of the work done by a person is as follows;

The following information is given

Force = 200.N

Distance = 10.0 meters

Angle = 30 degrees

based on the above information

Work done is

$\overset{F}{\rightarrow}. \overset{D}{\rightarrow}\\\\fd cos \theta$

Work done is

= (200) (cos 30 degrees) (10.0 meters)

= 1,732 J

hence, the work done by a person is 1,732 J

The same is considered and relevant

7 0

4 years ago

Connective Tissue in a tendon is

mariarad [96]

Overview. A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.

4 0

3 years ago

Velocity vectors point in the same direction as displacement?

liq [111]

Explanation:

You walk 53m to the north, then you turn 60° to your right and walk another 45m. Determine the direction of your displacement vector. Express your answer as an angle relative to east

8 0

3 years ago

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