DED Physics Final Exam Questions & Answers 2023/2024
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Course
DED Physics
Institution
DED Physics
DED Physics Final Exam Questions & Answers 2023/2024
At high altitudes a commercial jetliner must compress the house air before circulating it in the pressurize cabin but the compressed air must first be sent through an air conditioner because compressing air - ANSWER-Increases its temperature
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DED Physics Final Exam Questions & Answers 2023/2024
At high altitudes a commercial jetliner must compress the house air before circulating it in the pressurize
cabin but the compressed air must first be sent through an air conditioner because compressing air - ANSWER-Increases its temperature
The reason the white with the balanced ring and a spring keeps good time is that - ANSWER-The ring osculates back-and-forth with a constant frequency determined principally by the rings rotational mass and the spring stiffness
After cleaning the bar in the high jump You land softly on a giant mattress landing on the mattress is much more comfortable than landing of the Sand heap of equal size because - ANSWER-You transfer the same momentum to the mattress in coming to a stop as you would've transferred to the Sandeep and coming to a stop but the mattress takes more time to stop you
Goose down is the soft fluffy feathers near a gooses skin the reason that a goose down jacket keeps you so warm in the winter is that - ANSWER-The fine structure of the goose down traps air and prevent it from under going convection
You and Fran are piling a canoe across the lake you both reach forward with the paddles raised above the
water lowering the paddles into the water and then pull the paddles back way toward you the canoe accelerates forward as you pull back word on your paddles because as you pull back word - ANSWER-The
water pushes forward on your paddles
You are juggling grapefruit in your hands in about to toss one far above your head after it leaves your hand the grapefruit will experience - ANSWER-Only the downward force of its weight both before and after it reaches its peak height
You toss a bottle straight up disregarding any effects due to the air what Force or forces are acting in the bottle while it is above your hands - ANSWER-The bottles wait
A toy top is spinning steadily on the table with only it's sharp point touching the table surface what is keeping it spinning - ANSWER-No torque at all just its own angular momentum
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