Physics » Page 8

Physics

Roberto Bradshaw

What is the normal acceleration of a car?

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Physics

Kylie Mccann

Convert 2 m to yards

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Physics

Amaya Pineda

Carbon can react with oxygen to form carbon dioxide. Which of the following statements about this chemical change is true.

A. Carbon and oxygen atoms change into atoms of carbon dioxide

B. Carbon and oxygen atoms are rearranged into a new substance

C. Carbon and oxygen atoms are destroyed as new atoms are formed

D. Carbon and oxygen atoms have the same properties as molecule of carbon dioxide

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Physics

Eva Martin

8. If a circuit has a fuel cell that pushes 12V, and a current that runs 6A, what will its resistance be?

a) 2.0 2

b) 2.52

c) 3.0 22

d) 3.522

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Physics

Desiree Cooley

Which of the following contributes to the phases of the Moon as seen from Earth?

The Moon orbiting the Earth.

The Sun lighting different parts of the Moon at different times.

Varying amounts of the Moon's lit surface being visible from Earth.

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Physics

Keira Mcdonald

What hanging mass will stretch a 2.1-m-long, 0.43 mm - diameter steel wire by 1.5 mm? the young'? s modulus of steel is 20*1010n/m2. express your answer using two significant figures?

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Physics

Aydan Madden

The second law of thermodynamics states that thermal energy can flow from colder objects to hotter objects ...

a. by convectionb. only if work is done on the systemc. spontaneously

d. when thermal expansion takes place

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Physics

Kendra Phelps

A titanium bicycle frame displaces 0.314 l of water and has a mass of 1.41 kg. part what is the density of the titanium in g/cm3

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Physics

Aubree Day

The resistance of moving surfaces produces

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Physics

Rubi Fitzpatrick

Identify the energy change that occurs in a solar calculator

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Physics

Gunnar Hobbs

What are dielectrics? Give examples

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Physics

Belen Pugh

A cement factory emits 900 kilograms of CO2 to produce 1,000 kilograms of cement. A fully grown tree removes six kilograms of CO2 per day from the air. One acre of land can support 200 mature trees. A company builds a factory that will produce 100,000 kilograms of cement. To make the factory carbon neutral, the owners need to grow trees over an area of land measuring acres.

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Physics

Lena Dodson

A circuit constrains one light bulb and one battery. What happens to the total resistance in the circuit if you replace one light bulb with a string of four identical bulbs? Why?

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Physics

Shiloh Good

The loudness of a sound wave is most closely related to

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Physics

Aryanna Hurley

What are Nebulae and what are they made of?

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