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Harold
PhysicsPhysics
Which two substances could be produced in a combustion reaction?

A. Carbon dioxide and oxygen

B. Carbon dioxide and water

C. Heptane and water

D. Heptane and oxygen
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Johnny
PhysicsPhysics
How are characteristic properties of a given substance different from its other properties and chemical properties
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Bubblegum
PhysicsPhysics
What instrument can you use to measure the circumference of your waist?
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Grady Sherman
PhysicsPhysics
Which will reduce the possible environmental damage associated with mining uranium?

installing newer water recycling systems in older power plants

increasing the reprocessing of used fuel for reuse

building additional fission nuclear power plants

developing better places to store radioactive wastes
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Braelyn Mcintyre
PhysicsPhysics
Two oppositely charged but otherwise identical conducting plates of area 2.50 square centimeters are separated by a dielectric 1.80 millimeters thick, with a dielectric constant of K=3.60. The resultant electric field in the dielectric is 1.20*106 volts per meter. Part A Compute the magnitude of the charge per unit area σ on the conducting plate. Express your answer in coulombs per square meter to three significant figures.
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Rachael Patrick
PhysicsPhysics
How will sunlight most likely affect a black shirt on a hot summer day?
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Jamar Proctor
PhysicsPhysics
A group of hikers hears an echo 2.90 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 341 m/s.)
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Trace Cunningham
PhysicsPhysics
John pushes his bed to the right overcoming the force of friction on the free body diagram below which force represents the friction force on the bed
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Spence
PhysicsPhysics
What is the difference between free fall and weightlessness?
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Kash
PhysicsPhysics
A ball slows down as it rolls up a hill. this is an example of?

A. relative velocity

B. negative acceleration

C. positive acceleration

D. neutral motion
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Hugo Ali
PhysicsPhysics
Why is there a difference in air pressure at sea level as compared to mountain tops?
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Alessandro Mccall
PhysicsPhysics
A 35-gram stainless steel ball on a track is moving at a velocity of 9 m/s. On the same track, a 75-gram stainless steel ball is moving at a velocity of - 7 m/s. After colliding, the 35-gram ball moves at a velocity of - 15 m/s. Assume there is no net force on the system. What is the velocity of the 75-gram ball after the collision? Round to the nearest tenth. - 4.2 m/s - 0.5 m/s 0.5 m/s 4.2 m/s
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Taliyah Murillo
PhysicsPhysics
A book is sitting on a table, completely still. What would happen if gravity suddenly stopped affecting the book? A. The book would move upward. B. The book would stay where it is. C. The book would fall. D. The book would move sideways.
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Lyric Wood
PhysicsPhysics
A 70 kg box is pulled by a 400 N force at an angle of 30° to the horizontal. The force of kinetic friction is 75 N.
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Ashley Hawkins
PhysicsPhysics
18. When is an atom unlikely to react and form chemical bonds?
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