Physics, 12.07.2019 22:10 sliverx201
Apilot loses control of her drone and it goes into a spiraling freefall toward the ground. assume the position of the drone, relative to the pilot (consider her the 'origin') is given by ) (3sin(rt) 3cos(rt),120-9r), over [0, t,], wheret, is time until impact (t is in seconds and each component is measured in feet) a. find the velocity and acceleration vectors of the plane's trajectory determine the plane's speed at 3 seconds, as well as its downward velocity at that time (note that this is just how fast the drone's height is dropping b. assuming the pilot cannot correct the spin, determine the point on the ground (relative to our origin) where the drone hits. also determine the total distance covered by the spiraling drone (you may need to use technology here) c. assume now, on the other hand, that the drone comes out of its spiral after 8 seconds, but that its path afterward is tangent to its trajectory at that moment. determine how far from the pilot the drone hits the ground d. assume the ground is flat as far as the eye can see (as flat as, the xy-plane)
Answers: 1
Physics, 22.06.2019 00:50, gungamer720
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 01:30, LarryJoeseph
Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a
Answers: 2
Physics, 22.06.2019 04:30, tinytoonjr8052
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
Apilot loses control of her drone and it goes into a spiraling freefall toward the ground. assume th...
Social Studies, 22.07.2019 23:00