Physics, 26.06.2021 03:00 kloring3506
Why is a rotting apple a reaction in which energy is neither absorbed nor released?
A) The chemical energy in the reactants is much greater than the chemical energy in the products.
B) The chemical energy in the reactants is much less than the chemical energy in the products.
C) The chemical energy in the reactants is almost equal to the chemical energy in the products.
Answers: 3
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Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball
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Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
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Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
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Why is a rotting apple a reaction in which energy is neither absorbed nor released?
A) The chemical...
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