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Physics

Uncover the laws that govern the universe, from the smallest particles to the vastness of space. Physics seeks to explain the fundamental mechanisms of the natural world.

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Q: Some argue that wind power should be used much more than it is now. What argument could someone make against the use of wind power
2 answers
Q: What transfer gravitational potential to kinetic to electrical current
1 answer
Q: A force of 100 N was necessary to lift a tree. A total of 150 Joules of work was done. How far was the tree lifted
1 answer
Q: Energy can not be stored
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Q: Why is the transistor considered the greatest invention of the 20th century
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Q: What are two main bands of television wave frequencies
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Q: Type of simple machine made up of a bar that moves on a fixed pointor fulcrum
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Q: The buoyant force on an object in a fluid is equal to the weight of the
3 answers
Q: Water and air are both fluids. Why is it easier to lift a rock in water rather than lifting a rock in air
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Q: As a wave nears the shore the wave height increases What does the wave length do
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Q: Where is gamma radiation found at
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Q: A car accelerates from to at a rate of How far does it travel while accelerating
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Q: Coal has about 30E6 J of energy per kg but a power plant can only use 30 of this energy to make electricity (i.e. it is 30 efficient). How many kilograms of coal have to be burned to light a 100 W lig
1 answer
Q: The distance from the ground to the floor of a trailer is 20 inches. The length of the ramp is 50 inches. What is the mechanical advantage of this simple machine
1 answer
Q: 3. The side windows on your vehicle may not be composed of covered by or treated with any material which has a highly reflective or mirrored appearance and reflects more than of the light.
1 answer
Q: Two examples of objects on which you exert forces when you are doing your schoolwork
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Q: The verb phrase in The air conditioner is making a funny noise.
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Q: The force that's keeps objects moving in a circle is called centripetal force
2 answers
Q: An electromagnet is a type of what
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Q: Is electric current measured in volts
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Q: Is rubber an electric conductor
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Q: If the resistance in a circuit is doubled while the voltage remains constant the current does what
1 answer
Q: How do Earth's spheres interact energy or matter
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Q: What consumer has access to the smallest supply of energy
1 answer
Q: The property of ice that allows it to float in the ices low
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Q: Calculate the pressure in pascals if a 560N is applied to an area of 1.6m and sup2
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Q: Alculate the pressure in pascals if a 140N force is applied to an area of 0.1m .
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Q: O calculate pressure it is necessary to know the force and what
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Q: Blank is anything that has mass and take up space
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Q: A force that can attract and repel certain metals
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Q: What are many loops of wire placed one on top of another
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Q: Ultraviolet light can kill these
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Q: In a few moments the green flag would wave and engines would roar to life. Landon clutched the steering wheel willing himself to breathe calmly. Today's race would determine the rest of his life. Whic
2 answers
Q: For any two materials the force required to overcome sliding friction is always larger than the force required to overcome starting friction
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Q: How is friction generated
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Q: What is the resistivity and the conductivity of aluminum
1 answer
Q: Paths paths everywhere a stamped-in network of paths spreading over the empty land through the long grass through burnt grass through thickets down and up chilly ravines up and down stony hills ablaze
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Q: In which type of energy is the sun not the source
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Q: Two clarinet players are tuning their instruments. One plays a perfect G at 352 hertz. The other is slightly sharp and plays at 359 hertz. What is the beat frequency in hertz
1 answer
Q: A longitudinal wave with a wavelength of 0.57 meter has a period of 0.25 second. How far does the wave travel in 33 seconds
2 answers
Q: A spring stretches 11 centimeters from its equilibrium position when an object weighing 29 newtons is hung from it. What is the spring constant
2 answers
Q: If a moving boxcar gently collides with a boxcar at rest and the two boxcars move together their combined momentum will be
1 answer
Q: A young boy travels through the woods alone to find an ancient treasure. Along the way he battles different creatures who tempt him. A forest nymph delights his nose with a meal of delectable fruits.
2 answers
Q: Printmaking involves moving a tool across a dry surface to create marks on that surface
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Q: Is lifting weight kinetic or potential energy
2 answers
Q: How do employers decrease the amount of work they must do to find a potential
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Q: Five pit traps will be set at each location and left in place for three days. What is the dependent variable in this experiment
1 answer
Q: What is streamlining and why it is required
1 answer
Q: What amplitudes of sound can humans hear
1 answer
Q: What is emitted from the nucleus during beta decay
1 answer
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