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Rowan Newman
A 65 Kg skier starts at rest at the top of a 150 m long hill that has an incline of 28 degrees. How fast will she be going at the bottom of there is 50N of friction?
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Adrienne Wiley
Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.
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Todd Turner
Tracy stands on a skateboard and tosses her backpack to her friend who is standing in front of her. Which best describes the acceleration Tracy experiences?

It is less than the acceleration of the backpack because she has a greater mass.

It is greater than the acceleration of the backpack because she has a greater mass.

It is less than the acceleration of the backpack because she uses a smaller force.

It is greater than the acceleration of the backpack because she uses a larger force.
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Kristin Bryant
A plane travels 2.5 KM at an angle of 35 degrees to the ground, then changes direction and travels 5.2 km at an angle of 22 degrees to the ground. What is the magnitude and direction of the planes total displacement?
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Darrell Shields
What happens to a current when it comes in contact with a continent or landmass?
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Alexandra Chambers
An object of mass 1000 kg, initially having a velocity of 100 m/s, decelerates to a final velocity of 20 m/s. what is the change in kinetic energy of the object, in kj?
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Gracelyn
Approximately how many years will the sun remain on the main sequence
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Jacquelyn Horne
14

If the mass of one asteroid in space is 25,000 kg and the mass of another meteor is 40,000 kg, what is the gravitational force pulling them together if

the distance between them is 10 m? Remember that the egn for Gravitational Force is Feravitation = 6 mm

O 0.00068 N

O 6.68 N

49,000 N

100000000 N

15

16

Next
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Issac Schmidt
How many days are there between a new moon and Full moon
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Corey
Aristotle was a Greek philosopher who believed that the planets must move in perfect circles.
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Elian Schroeder
A gaseous decay product of uranium that is found in rocks is called
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Jonathon Ellis
Briefly describe how risk-taking behavior in adolescence is connected to brain maturation.
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Guest
A 12.0-g ball is placed in a slingshot with a spring constant of 200 N/m. The ball is stretched back 0.500 m. The slingshot is aimed straight up, then fired. What is the maximum height that the ball will reach?

213 m

106 m

98 m

182 m
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Gordon Carpenter
The gravitational potential energy, with respect

to Earth, that is possessed by an object is

dependent on the object's

(1) acceleration (3) position

(2) momentum (4) speed

Note that question 15 has only three choices.
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Juliet Alvarez
Your employer asks you to build a 24-cm long solenoid with an interior field of 4.6 mT. The specifications call for a single layer of wire, wound with the coils as close together as possible. You have two spools of wire available. Wire with a #18 gauge has a diameter of 1.02 mm and has a maximum current rating of 6 A. Wire with a #26 gauge is 0.41 mm in diameter and can carry up to 1 A.

a. Which wire should you use?

b. What current will you need?
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