Physics, 14.09.2019 10:30 mookiejacks
Ahot-air balloon is drifting in level flight due east at 2.8 m/s due to a light wind. the pilot suddenly notices that the balloon must gain 28 m of altitude in order to clear the top of a hill 130 m to the east. how much time does the pilot have to make the altitude change without crashing into the hill? what minimum, constant, upward acceleration is needed in order to clear the hill? what is the horizontal component of the balloon’s velocity at the instant that it clears the top of the hill? what is the vertical component of the balloon’s velocity at the instant that it clears the top of the hill?
Answers: 2
Physics, 22.06.2019 10:00, Trinhphuongtran
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 10:30, austinwst3
You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
Answers: 2
Physics, 22.06.2019 16:30, Unicorn66y
Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?
Answers: 3
Ahot-air balloon is drifting in level flight due east at 2.8 m/s due to a light wind. the pilot sudd...
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