Answers: 1
Physics, 21.06.2019 23:00
1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s
Answers: 2
Physics, 22.06.2019 09:00
In the first law of thermodynamics, triangle e=q-w, what does q stand for
Answers: 1
Physics, 22.06.2019 18:30
Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
Physics, 22.06.2019 18:30
A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
Answers: 3
Describe the different processes that lead to substantial internal heat sources for jupiter and satu...
Mathematics, 30.04.2021 05:10
Chemistry, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
English, 30.04.2021 05:10
Biology, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
Biology, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
Computers and Technology, 30.04.2021 05:10
Chemistry, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
Mathematics, 30.04.2021 05:10
English, 30.04.2021 05:10
History, 30.04.2021 05:10