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Delicious77 [7]
3 years ago
11

Spring is here, and Cho and her uncle would like to go fishing for the weekend in Washington. Cho could either go to the river i

n town where anyone can fish without a permit, or she could drive up to a stream located on her family's property in the countryside to fish. Assume that, no matter where people fish, all of the fish that are caught would be kept (that is, there is no "catch and release" policy).
The fish in the private stream are considered(Rival in consumption/ nonrival in consumption) and (Excludable/ nonexcludable) whereas the fish in the river are(Rival in consumption/ nonrival in consumption) and (Excludable/ nonexcludable) . In other words, the fish in the private stream are an example of (A public good/ private good/ club good/ common resource) , and the fish in the river are an example of (A public good/ private good/ club good/ common resource). Fishing in the river will likely lead to( Tragedy of the commons/ adverse selection / the free-rider problem) because of which of the following reasons?

A. Nobody will enjoy fishing because of the lack of private contributions to the maintenance of the river.

B. Anyone can fish in the river, and one person's fishing activity decreases the ability of someone else to fish with success.

C.All fishermen will choose to fish in the river because of the limited access to the stream.

D, All fishermen will choose to fish in the stream believing that there are more fish there.
Physics
1 answer:
aleksley [76]3 years ago
8 0

Answer:

B. True  since when a person removes the weights there is less for the other people

Explanation:

This problem ask us consider some things

In the private current it is considered a good example of a private good

the fish in the river are a common resource

the fishing in the river is tragedy of the commons

A False. The fish in the river are natural and not sown

B. True  since when a person removes the weights there is less for the other people

C. False. Some fishermen will go to the creek

D. False some will go to the river

.

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Answer:

F = 2123.33N

Explanation:

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\Sigma \tau=0

Next, you calculate the resultant of the torques around the right support, by taking into account that the torques are generated by the center of mass of the wooden, the person and the left support. Furthermore, you take into account that torques in a clockwise direction are negative and in counterclockwise are positive.

Then, you obtain the following formula:

-\tau_l+\tau_p+\tau_{cm}=0          (1)

τl: torque produced by the left support

τp: torque produced by the person

τcm: torque produced by the center of mass of the wooden

The torque is given by:

\tau=Fd           (2)

F: force applied

d: distance to the pivot of the torque, in this case, distance to the right support.

You replace the equation (2) into the equation (1) and take into account that the force applied by the person and the center of mass of the wood are the their weight:

-Fd_1+W_pd_2+W_{cm}d_3=0\\\\d_1=6.0m\\\\d_2=2.0m\\\\d_3=3.0m\\\\W_p=(200kg)(9.8m/s^2)=1960N\\\\W_{cm}=(300kg)(9.8m/s^2)=2940N

Where d1, d2 and d3 are distance to the right support.

You solve the equation for F and replace the values of the other parameters:

F=\frac{W_pd_2+W_d_3}{d_1}=\frac{(1960N)(2.0m)+(2940N)(3.0m)}{6.0m}\\\\F=2123.33N

The force applied by the left support is 2123.33 N

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In essence, the Carnot cycle is a reversible cycle made up of four other reversible processes. A reversible process is one that can be thought of as consisting of a sequence of equilibrium stages because it is carried out endlessly slowly.

Essentially, this means that any reversible cycle can be performed in reverse and that the amount of work or heat exchanged along the forward and backward pathways is the same.

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