B4

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course Phy 201

6/3 10

Question: `q001YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

Your solution:

30 - 20 = 10

10 / 2 = 5 seconds

7 * 2 = 14

10 + 14 = 24 mph

confidence rating #$&*: 3

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Self-critique Rating:OK

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Question: `q002

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Your solution:

The vehicle will require less than 10 seconds to reach the lamppost. The speed will not be 10 mph greater than before it will be less than 10 mph.

confidence rating #$&*: 3

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Self-critique Rating: OK

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Question: `q003

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Your solution:

30- 20 = 10

10 / 5 = 2 mph per second

90 - 40= 50

50 / 20 = 2.5 mph per second

The second car speeds up fasters.

confidence rating #$&*:: 3

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Self-critique Rating: OK

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Question: `q004.

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Your solution:

3000 / 1500= 2

5000 / 2000= 2.5

The second automobile will accelerate more quickly than the first.

The second team will still win.

5000- 500= 4500

4500 / 2000 =2.25

confidence rating #$&*: 3

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Self-critique Rating: OK

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Question: `q005

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Your solution:

250 * 10 = 2500 lb ft/ sec

200 * 20= 4000 lb ft/ sec

The first player will be moving backwards immediately because the second player has a much greater effectiveness.

confidence rating #$&*: 3

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Self-critique Rating: OK

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Question: `q006

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Your solution:

12 / 200 = .06

10 / 150 = .067

The 150 lb climber should be able to climb further up the mountain because he has more energy per pound compared to the 200 lb climber.

confidence rating #$&*: 3

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Self-critique Rating: OK

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Question: `q007

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Your solution:

I really have no idea where to even start with this one except that I believe it will take the faster automobile longer to stop.

confidence rating #$&*: 0

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Self-critique (if necessary):

I really have no idea where to even start with this one except that I believe it will take the faster automobile longer to stop but after reading the solution I am beginning to understand the solution a little better. I think that after reading and doing more of these exercises this will become easier to understand.

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Self-critique Rating: 0

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Question: `q008

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Your solution:

I believe that is would be 7 because it seemed to increase by 2 ft every 25 lbs were added.

confidence rating #$&*: 2

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Self-critique (if necessary):

I believe that is would be 7 because it seemed to increase by 2 ft every 25 lbs were added. After looking at the given solution I understand how it increasing less after 150 lbs and how you get the answer to be more than 7.

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Self-critique Rating: OK

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Question: `q009

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Your solution:

I thought that is would be twice as far because she traveled 5 feet for every foot she is pulled back and released

confidence rating #$&*:: 1

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Question: `q009

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Your solution:

I thought that is would be twice as far because she traveled 5 feet for every foot she is pulled back and released

confidence rating #$&*: 1

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Self-critique (if necessary):

I thought that is would be twice as far because she traveled 5 feet for every foot she was pulled back and released. But after reading the solution I am still confused on how you got the answer. Could you give me some suggestion on how to begin working this problem???

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Self-critique Rating: 0

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Question: `q010.

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Your solution:

The second will seem dimmer at first. I don’t believe that the will appear to have the same brightness as the first because the light has to cover more area. I think that it would have half the brightness of the first because the light has to cover double the area.

confidence rating #$&*: 2

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Self-critique (if necessary):

I am beginning to see why it will be 1 / 4 as dense on the surface but all of this is still a little confusing to me.

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Self-critique Rating: 1

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Question: `q011.

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Your solution:

Increasing the temperature of the ice by 20 degrees to reach its melting point, Melting the ice at its melting point, increasing the temperature of the water by 20 degrees after all the ice melted.

40 degrees because that is when all of the ice is melted

confidence rating #$&*: 2

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Self-critique (if necessary):

I understand now why melting takes place at 0, I just misunderstood the question. After reading the solution I know why which example took the least to the most energy.

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Self-critique Rating: 3

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Question: `q012

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Your solution:

You would bob up and down 1 foot because 6 + 6 = 12 in.

I do not know how far you would have to move towards one end or the other in order for the peaks to meet valleys.

confidence rating #$&*: 1

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Self-critique (if necessary):

I understand the second part of the question after reading the solution but could you give me another example of how to work the second part???

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Self-critique Rating: 1

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Question: `q013

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Your solution:

The Steel ball would have greater velocity as it falls

The wood ball would spend the greater time falling

The steel ball would hit the ground first.

confidence rating #$&*: 1

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Question: `q014.

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Your solution:

Four times as much power is required because if you double the circuit and double the current. 2 * 2 = 4 times as much power.

confidence rating #$&*: 1

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Self-critique Rating: 1

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Self-critique (if necessary):

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Self-critique rating:

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#$&*

@&

The questions are missing from this document, which will render it useless as a reference. Better resubmit this one.

Hopefully you'll be able to do this fairly quickly, so it won't take too much of your time.

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