Explain whether a red apple is opaque or transparent and why it appears red.

An opaque object is an object through which the light rays can not be passed and we can not see from that object while transparent object allows the passage of light.

Hence red apple is unable to pass light, so it is a opaque object. ... Hence red apple looks red because it absorbs all color except red.

Explanation:

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when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min