Answers: 1
Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Physics, 22.06.2019 18:30
Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm
Answers: 2
I don't know the answer can anybody help?
...
...
Mathematics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Health, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Arts, 06.10.2020 14:01
Biology, 06.10.2020 14:01
Physics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01
English, 06.10.2020 14:01
Mathematics, 06.10.2020 14:01