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Physics

Guest

An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 900 m, horizontal distance 19.0 km, and 22.5° south of west. The second aircraft is at altitude 1300 m, horizontal distance 17.0 km, and 24.0° south of west. What is the distance between the two aircraft

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Physics

Andreas Rios

What is the magnitude of the electric field 23.4 cm directly above an isolated 3.50*10-5 C charge?

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Physics

Skinner

If the amount of Adams of each type on the left and right sides of a reaction difference what must be done to balance it

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Physics

Jakob Howe

In which state of matter are particles packed tightly together and stay in fixed positions?

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Physics

Newt

An apple has a mass of 0.136kg and a watermelon has a mass of 9.07kg. Work out the mass of the apple as a percentage of the mass of the watermelon. Round to two significant figures. Convert kg values into pounds

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Physics

Kendra Phelps

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?

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Physics

Natalie

Which of the following force fields will deflect electron beams?

Magnetic

Electrical

Gravitational

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Physics

Erik Mitchell

Which movement of the Earth cause day and night?

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Physics

Guest

What's the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms?

3 m/s

5 m/s

7 m/s

8 m/s

10 m/s

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Physics

Howie

Um atleta correu 400 metros em 80 segundos. Qual é sua velocidade média?

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Physics

Ellie Baird

What is a molecule?

A. A group of positive ions surrounded by delocalized electrons

B. A group of ionically bonded atoms

C. Two oppositely charged ions

D. A group of covalently bonded atoms

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Physics

Addison Koch

Is mechanical energy kinetic energy, potential energy, or both form of energy?

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Physics

Ashton

What is the main difference between the intertidal zone and the neritic zone?

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Physics

Aimee Hogan

What is the SI unit of emf

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Physics

Melina Rice

What is a quantity with only magnithde (no direction).

e.

g. 5 meters?

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