Physics, 11.12.2020 04:40 duke4527

PLEASE HELP. A jet takes off from Toronto and flies directly to San Francisco on a heading of (W21S). A wind blows out of form the direction of (S11E). The distance between the two cities is 3564 km and
the jet is capable of cruising at 650 km/h in still air. If the entire trip takes 7.0 hrs what is the jets
ground speed, what is the wind speed and in what direction should the captain point the jet.

Answers

Answer from: Quest

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

$p(t)=0.3t^2+6t+80$

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

$p(0)=0+0+80=80$

according to question, we have said that if the population has twice its initial population, then it becomes

$p(t)=2\times 80=160$

so, time taken to reach this above mentioned population is given by

$160=0.3t^2+6t+80\\\\160-80=0.3t^2+6t\\\\80=0.3t^2+6t\\\\0.3t^2+6t-80=0\\\\\text{using quadratic formula ,we get }\\\\t_{1,\: 2}=\frac{-60\pm \sqrt{60^2-4\cdot \: 3\cdot \: 800}}{2\cdot \: 3}\\\\t=-29.14\ and\ t=9.149$

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

Answer from: Quest

Yuauhahahanqqnnqhahajna

Answer from: Quest

It's have to be 12 or idk

Answer from: Quest

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//

Other questions on the subject: Physics

Physics, 21.06.2019 15:10, jmac48828

Are aliens real? justify you’re answer.

Answers: 1

continue

Physics, 22.06.2019 14:30, val926

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Answers: 2

continue

Physics, 22.06.2019 16:00, lexhoangg

The discovery of the electron as a subatomic particle was a result of

Answers: 2

continue

Physics, 22.06.2019 16:10, estefaniapenalo

To a of 4 x hz is 1. 0. mm nm nm

Answers: 1

continue

You know the right answer?

PLEASE HELP. A jet takes off from Toronto and flies directly to San Francisco on a heading of (W21S)...