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5 Physical Science questions

Date Posted: 26/02/2020
Category: Science
Due Date: 26/02/2020
Instruction
Answer all the questions briefly. Do not write your own answers. Answers must have scientific knowledge and not general knowledge. 1. Hoe much work is needed to raise a 110Kg load of bricks 12m high above the ground to a building under construction? 2. An 80Kg mountaineer climbs a 3000m mountain in 10h. What is the average power output during the climb? 3. What is the speed of an 800Kg car whose K.E. is 250KJ? 4. Does every moving body possess kinetic energy? Does every stationary body possess potential energy? 5. A boy throws a 4Kg pumpkin at 8m/s to a 40Kg girl on roller skates, who catches it. At what speed does the girl then move backward? Instructions: Answer all the questions briefly. Do not write your own answers. Answers must have scientific knowledge and not general knowledge. DO NOT WRITE YOUR OWN ANWERS ANSWERS MUST BE SCIENTIFIC KNOWLEDGE!!!
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