**Suppose a cart is being pushed by a certain net force. If the net force is doubled, by how much does the acceleration change? Explain. NO WORK = NO CREDIT = REPORT

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Light waves can move through , but they travel fastest when they move through a(n) .

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?