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a) The boy is travelling at 2.5m/s horizontal relative to the ground. When he gets off the back of the bike, the soles of his shoes hit the ground and experiences a large frictional force. This frictional force acts in the direction opposite the direction he was travelling in before. This...

5715/1275=4.4823 So it means that the carbon sample would have been halved 4.4823 times Therefore (1/2)^4.4823=0.04473times the original amount Therefore the amount of carbon 14 left would be = 5*0.04473=0.2236grams :D HAPPY MATH-ING!

Refer to your periodic table to find the atomic masses of aluminium. Then convert grams to moles by the following formula Grams/Atomic Mass=Number of moles For solutions like KOH, take (Amount in mL/1000mL)*Molarity=Amount in moles Distilled HOH is H20 is 100% water. 1mL of water is one gram...

Refer to your periodic table to find the atomic masses of aluminium. Then convert grams to moles by the following formula Grams/Atomic Mass=Number of moles For solutions like KOH, take (Amount in mL/1000mL)*Molarity=Amount in moles Distilled HOH is H20 is 100% water. 1mL of water is one gram...

Refer to your periodic table to find the atomic masses of aluminium. Then convert grams to moles by the following formula Grams/Atomic Mass=Number of moles For solutions like KOH, take (Amount in mL/1000mL)*Molarity=Amount in moles Distilled HOH is H20 is 100% water. 1mL of water is one gram...

Refer to your periodic table to find the atomic masses of aluminium. Then convert grams to moles by the following formula Grams/Atomic Mass=Number of moles For solutions like KOH, take (Amount in mL/1000mL)*Molarity=Amount in moles Distilled HOH is H20 is 100% water. 1mL of water is one gram...