3 years ago

How do open-market operations change the money supply?

1 answer:

6 0

If they want to increase the money supply in the economy it will buy securities. Conversely, if the they want to decrease the money supply, it will sell securities.

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Select the correct answer.

Alona [7]

Answer:d to reproduce

Explanation:

I took the test

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3 years ago

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The power that a student generates when walking at a steady pace of vw is the same as when the student is riding a bike at vb =

Nadya [2.5K]

Answer:

1/9

Explanation:

Sorry, I don't know if this is right, but here is what I did. We are ignoring potential energy because we assume that the student is walking and biking on level ground. Power = W/T, W = Mechanical Energy, or just Kinetic for this case. So $P_{w}=\frac{E_{w} }{T}$ , and $P_{b} =\frac{E_{b} }{T}$ . Ew = $\frac{1}{2} mv_{w}^{2}$ , and Eb = $\frac{1}{2} m(3v_{w})^{2}$ . Put Ew over Eb. the 1/2's cancel, the m's cancel, and you are left with $\frac{v_{w} ^{2} }{9v_{w}^{2} }$ . Finally, this simplifies after cutting out the vw^2's to 1/9.

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3 years ago

Jordan wants to see if earthworms prefer rough or smooth terrain to crawl through. What will be his

Maslowich

Answer:

Change the terrain

Explanation:

independent variable is the cause and the change in terrain will change the outcome

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3 years ago

How much work is done by a person who picks up a 3-kg crate from the floor, raises it 2m and sends it flying with a speed of 4m/

erastovalidia [21]

Answer:

82.8 J

Explanation:

The work done to raise the crate is ...

PE = Mgh = (3 kg)(9.8 m/s^2)(2 m) = 58.8 J

The kinetic energy added to send the box flying is ...

KE = (1/2)Mv^2 = (1/2)(3 kg)(4 m/s)^2 = 24 J

So, the total work involved in this activity is ...

58.8 J +24 J = 82.8 J

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3 years ago

A sonar wave is reflected from the ocean floor. For which angles of incidence do the wave’s angle of reflection equal its angle

nadya68 [22]

After a thorough research, there exists the same question that has the following choices.

(1) angles less than 45°, only
(2) an angle of 45°, only
(3) angles greater than 45°, only
(4) all angles of incidence

The correct answer (4) all angles of incidence.

7 0

3 years ago