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2) A student pushes a chair with a force of 200N and accelerates it at a rate of 2m/s2. Find
the mass of the chair
Answers: 1
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Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
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Which one of the following research methods can show cause and effect
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If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
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As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
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I
2) A student pushes a chair with a force of 200N and accelerates it at a rate of 2m/s2. Find
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