Physics » Page 51

Physics

Garrett Fisher

Use hubble's law to determine the distance to a galaxy which is moving away at a velocity of 3,500 km/s. (assume that h = 70 km/s/mpc)

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Physics

Deshawn Mcdonald

Circuit has a single pathway for the electrons of flow.

series

parallel

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Physics

Macie Clements

Which of the following is a disadvantage of radio?

A) Radio waves cover a large range if given enough power.

B) Radio devices are inexpensive.

C) Radio waves create electrical interference.

D) Radio waves propagate easily through office walls.

E) Radio devices are easy to install.

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Physics

Aleah Frederick

Suppose if you whirl a yo-yo about your head in a horizontal circle. in what direction must a force act on the yoyo? What exerts the force?

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Physics

Jamya

Solutions with a low pH have which of these properties?

- have an - OH value

-feels slippery

-tastes sour

-turns litmus paper blue

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Physics

Marissa Diaz

Steel is a mixture of iron and carbon. It can be separated into iron and carbon by melting it. What is steel?

A. A compound

B. An element

C. A molecule

D. An alloy

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Physics

Kaley Pearson

Consider two small masses of air, both at a pressure of 1000 mb. One mass is on the beach in Costa Rica (lucky air mass) and the other is on a glacier in Greenland (Sad!). Which mass has the higher density?

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Physics

Ian Armstrong

Metric Unit for Weight (Not grams)

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Physics

Enrique Hernandez

In a vacuum, which of the following statements about terminal velocity must be true?

A. Objects have the same terminal velocity that they do when there is air.

B. Objects do not have a terminal velocity, since there is no air resistance.

C. Objects have a terminal velocity that is less than they do when there is air.

D. Objects have a terminal velocity that is greater than they do when there is air.

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Physics

Emery Sosa

Which of the following statements describes an anticyclone?

a. It is an area of low pressure.

b. It is an area of high pressure.

c. It has air masses that meet and rise.

d. It moves in the direction of the Earth's rotation.

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Physics

Andrew Mitchell

The hydrocarbon C2H4 is a member of the_series.

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Physics

Dennis Ray

Only one force acts on one object. Can the object have 0 acceleration? Can it have 0 velocity?

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Physics

Timothy Hodge

The law of conservation of energy and describe the energy transformation that occur as you coast down a long hill on a bicycle and then apply the brakes to make the bike stop bottom

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Physics

Ignacio Ho

Which one of the following concepts explains why heavy nuclei do not follow the N = Z line (or trend) in the figure? A Transmutation B. Coulomb repulsion C. Particle-wave duality D. Pauli exclusion principle E. Heisenberg uncertainty principle

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Physics

Kenny Hartman

The force between a 0.001 C is 200 N. What is the distance between them

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