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On a frictionless toy race track, a 0.035 kg toy car moving right at 0.30 collides with another 0.040 kg toy
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car moving left at 0.20 After the collision, the 0.035 kg car moves left at 0.20
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What is the final speed of the 0.040 kg toy car?

Hindi ko din alam ehh

soryy

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this