Physics, 17.10.2020 14:01 hiyagirllyric
A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical
acceleration of -6.89 m/s and the initial plane horizontal speed is 68.9 m/s. Assuming air
resistance and wind are negligible, how long will the emergency kit be falling through the air?
Answer choices:
• 2.12s
• 7.10s
• 5.33s
• 6.19s
Answers: 2
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Answers: 2
Physics, 22.06.2019 19:30
Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 2
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Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
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Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.
Answers: 2
A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survi...
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