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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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Questions
Q: An object with gravity so strong nothing can escape
1 answer
Q: A force of 20 newtons is required to push a cart weighing 30 newtons 40 meters across a room. From this effort how many joules of work are performed
2 answers
Q: A longitudinal wave causes its medium in what direction
1 answer
Q: Allowing light to pass through so that objects can be clearly seen on the other side
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Q: Vinegar is good or bad conductor
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Q: True or false setting a heavy suitcase down on the ground requires you to do negative work on it
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Q: A mechanical wave is created when a source of energy causes
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Q: An area where the particles in a medium are spaced close together is called a
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Q: What kind of wave is caused by shaking a rope
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Q: What would happen to the coil if the current passing through it was too large
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Q: In an isolated system two cars each with a mass of 1000 kg collide car 1 is intitially at rest while car 2 was moving at 10 ms they move off together what is their speed
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Q: A fluid that vaporizes and condenses inside the tubing of a heat pump is called a
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Q: Dividing the wavelength by the wave period gives you the
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Q: The equation for kinetic energy is .
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Q: A car traveling at a velocity of 24 ms is accelerated uniformly at a rate of 2 ms squared for 8 second.What is the final velocity of the car
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Q: What is the kinetic
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Q: Points on a standing wave that have no vibration due to destructive interefence
1 answer
Q: According to the law of conservation of in an isolated system the initial total momentum before a collision equals the final total momentum.
9 answers
Q: True or false doing the same amount of work in less time requires more power
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Q: Suppose object A (2 kg) is at rest and object B (10 kg) runs into it with high speed. What is the likely result
2 answers
Q: The amount of work done by a heat engine equals the amount of thermal energy
1 answer
Q: What size wavelengths do harmull types of electrimagnetic waves typically have
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Q: The efficiency of a machine increases as the temperature inside relative to the temperature outside
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Q: How much did the cotton gin weigh
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Q: Convection is the transfer of thermal heat in a
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Q: What she theory is most widely used to structural analysis the steel parts
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Q: Of friction is used to represent the degree to which two surfaces will resist sliding against one another.
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Q: Two soccer players kick the same 1-kg ball at the same time in opposite directions. One kicks with a force of 20 N the other kicks with a force of 12 N. What is the resulting acceleration of the ball
2 answers
Q: Discuss whether sound can travel through metal strings or not
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Q: A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff. How long was the ball in the air3
1 answer
Q: Two objects one heavy and one light travel at one of two speeds. Which will have the most inertia
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Q: Two soccer players kick the same 2-kg ball at the same time in opposite directions. one kicks with force of 15 n the other kicks with a force of 5 n. what is the resulting acceleration of the ball in
1 answer
Q: Why is Gravity is not considered matter
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Q: What the ability to see objects at a distance but not things that are close
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Q: True or false if a object floats the volume of the displaced water is equal to the volume of the whole object
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Q: True or false an object buoyant force and weight arent the same thing
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Q: An idophone is a solid insrument that vibrates when it is
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Q: Effect of using wind on the environment
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Q: A free-falling golf ball strikes the ground and exerts a force on it. Which sentences are true about this situation
1 answer
Q: How are frequency and wavelength related for the spesific region of the spectrum
1 answer
Q: In which year was transmission electron microscope was invented
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Q: What are advantages and disadvantages of manometer
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Q: As of 2011 the nation leading in generating wind-power is
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Q: What is the formula relating pressuer force and area
1 answer
Q: How many metric ton to one brass
2 answers
Q: A vector that represents the distance and direction of an object's change in position
1 answer
Q: Air in motion
2 answers
Q: Where does precipitation fall when there is a warm front
1 answer
Q: What shapes do non-contact forces create
1 answer
Q: When was the first air conditioning made
2 answers
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