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Matthew
If the pressure inside a rubber balloon is 1500 mmhg, what is this pressure in pounds-force per square inch (psi)
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Freddy Rowe
Which is the only mechanism that can introduce new alleles in a gene pool? genetic drift random mating mutation
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Yael Boyer
A boulder and a pebble are sitting on a cliff, which has greater gravitational potential energy and why? A cheetah and a person are racing, both has the same mass, which has a greater kinetic energy and why?
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Elias Cooper
What is the slope if an object comes to a stop then remains at rest?
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Memphis Bernard
Positive charge Q is placed on a conducting spherical shell with inner radius R1 and outer radius R2. A particle with charge q is placed at the center of the cavity. The net charge on the inner surface of the conducting shell is
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Grant Fritz
A deer has a mass of 85 kg. What is the weight of the deer?

A. 833 N

B. 85 N

C. 8163 N

D. 512 N
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Carmen Rich
In a system, 45 J of work is done on a car using a 65 N force. How far does the car move
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Joaquin Soto
A negatively charged object is brought near the knob of a negatively charged electroscope. The leaves of the electroscope will ...

A) become positively charged

B) move closer together

C) become neutral

D) move farther apart
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Brylee Nichols
charged particles from the solar winds ultimately cause ___. a. the earth to maintain it's magnetic field b. the earth to change shape c. the auroras d. strong winds on earth
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Shaylee Boone
Suppose that a 710 kg car is traveling at 13 m/s. Its brakes can apply a force of 4000 N.

What is the minimum distance required for the car to stop? Make a quantitative force

diagram. Write a net force equation for the axis along which the forces are not balanced.
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Elsa Glover
What are Nebulae and what are they made of?
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Guest
That's because helium molecules are not packed together as densely as air molecules are. It is this simple reason that helium balloons float in the air.
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Ezekiel Gates
What potential difference is needed to stop an electron that has an initial velocity v=6.0
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Skyla Mcknight
What is formed at the head of the glacier, high on the mountain, as ice plucks pieces of rock out of the mountain?

A.

lateral moraine

B.

drumlin

C.

glacial lake

D.

cirque

Which are formed as glacial ice melts to form small channels underneath the glacier where sediment is deposited in sandy ridges?

A.

terminal moraines

B.

cirques

C.

eskers

D.

glacial striations
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Nicole Fuller
A pilot can withstand an acceleration of up to 9g, which is about 88 m/s2, before blacking out. (a) what is the acceleration experienced by a pilot flying in a circle of constant radius at a constant speed of 485 m/s if the radius of the circle is 2140 m? (b) does the pilot make the turn without blacking out?
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