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Physics

Jazlyn Shelton

Technician A says that whenever a floor jack is used to raise a vehicle off the ground safety stands should be used to support the vehicle. Technician B says that the floor jack can support the vehicle safely as long as it is just for a short time.

Who is right?

a) Technician A

b) Technician B

c) Both

d) Neither

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Physics

Carlos Brock

The volume of a gas is directly proportional to its temperature the pressure in the number of particles is constant. this is a statement of which law

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Physics

Brynn Washington

According to Newton's first law, which characteristic of a moving object would remain constant if there were no other forces acting on it?

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Physics

Guest

A charged sphere with 1 * 10 8 units of negative charge is brought near a neutral metal rod. The half of the rod closer to the sphere has a surplus charge of 4 * 10 4 units. What is the charge on the half of the rod farther from the sphere? 0 - 1 * 10 8 1 * 10 8 - 4 * 10 4 4 * 10 4

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Physics

Carmelo Ray

What law is know as the law of action - reaction

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Physics

Jacob Parsons

IV. Answer the following questions:

1. A bag of cement lying in the open gets wet due to rain during the night. The next day the

sun shines brightly. Do you think the changes, which have occurred in the cement could be

reversed? Explain.

(2, A potter working on his wheel shaped a lump of clay into a pot. He then baked the pot in

an oven. Do these two acts lead to the same kind of changes? Justify your answer.

3) Give three applications of heating and cooling in materials.

4) Plastic do not conduct heat as well as iron. Give reason

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Physics

Paul

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves gamma rays < radio waves < ultraviolet light radio waves < gamma rays < ultraviolet light ultraviolet light < gamma rays < radio waves gamma rays < ultraviolet light < radio waves radio waves < ultraviolet light < gamma rays

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Physics

Helena Cisneros

Observing a spacecraft land on a distant asteroid, scientists notice that the craft is falling at a rate of 5 m/s. When it is 100 m closer to the surface of the asteroid, the craft reports a velocity of 8 m/s. According to their data, what is the approximate gravitational acceleration on this asteroid?

A. 0 m/s2

B. 0.03 m/s2

C. 0.20 m/s2

D. 0.65 m/s2

E. 33 m/s2

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Physics

Izabelle Pace

A person gets into an elevator at the lobby level of a hotel together with his 30-kg suitcase, and gets out at the 10th floor 35m above. Determine the amount of energy consumed by the motor of the elevator that is now stored in the suitcase

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Physics

Demarion Gallagher

How are magnetic fields and electric fields similar

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Physics

Valerie Contreras

4x + 7y = - 23

8x + 5y = - 1

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Physics

Nina Cortez

Does a falling rock have potential or kinetic energy

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Physics

Kyleigh Meyers

5. Which pair of words, in order, correctly completes

the statement?

The energy released during reactions

is much greater than the energy released

during reactions.

A. endothermic, exothermic

B. endothermic; chemical

C. exothermic, nuclear

D. nuclear, chemical

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Physics

Kristian Marquez

Carbon is added to iron to make steel. Steel is stronger than either carbon or iron by itself.

What does this example show?

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Physics

Audrina Mullen

Which of the following statements best describes a covalently bonded material?

A. It is a conductor.

B. It is an insulator.

C. It readily allows electricity to flow.

D. It contains delocalized electrons.

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