Physics, 20.07.2021 05:00 princessroseee769
1. Estimate the buoyant force that air exerts on a man. (To do this, you can estimate his volume by knowing his weight and by assuming that his weight density is about equal to that of water. Assume his weight is 940 N.) answer in N
2.On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total weight of the balloon, including its load and the hot air in it, is 17000 N.
(a) What is the weight of the displaced air?
answer in N
(b) What is the volume of the displaced air?
answer in m^3
Answers: 3
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 23:30
Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .
Answers: 1
1. Estimate the buoyant force that air exerts on a man. (To do this, you can estimate his volume by...
History, 21.09.2019 18:30
History, 21.09.2019 18:30
Physics, 21.09.2019 18:30
Mathematics, 21.09.2019 18:30
Engineering, 21.09.2019 18:30
Computers and Technology, 21.09.2019 18:30
Geography, 21.09.2019 18:30
Mathematics, 21.09.2019 18:30
Mathematics, 21.09.2019 18:30
Computers and Technology, 21.09.2019 18:30
English, 21.09.2019 18:30