subject
Physics, 07.09.2019 00:10 AzuraSchaufler

Suppose that there is a plane flying over the earth, equipped with a cannon that is pointed towards the earth. the cannon shoots a 2kg cannonball at earth at an initial speed of 300 ft/s. but this is no ordinary cannonball. this is a smart cannonballtm. after being fired it will gradually reconfigure its shape to be- come more aerodynamic to reduce air resistance. following the convention that forces acting on the cannonball in the direction away from earth are neg ative, the smart corporation estimates that after t seconds of being fired the force from air resistance exerted on the cannonball will be- where v is the velocity of the cannonball at time t using this new estimate for the force of air resistance on the cannonball, write down a differential equation that models the motion of the cannonball. then find a function v(t) that returns the velocity of the cannonball after t seconds of being fired. for you solution v(t) in question 4, calculate the limit lim v(t). does the differ ential equation you developed in the previous question have any equilibrium solutions? based on this information, what can you conclude about the accu- racy of smart corporation's claim that the force from air resistance will be given by after t seconds? t-oo + u

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 09:40
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.
Answers: 1
question
Physics, 22.06.2019 15:30
What is a subatomic particle with a negative charge and very little mass?
Answers: 1
question
Physics, 22.06.2019 21:10
The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.
Answers: 1
question
Physics, 22.06.2019 22:00
Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has
Answers: 1
You know the right answer?
Suppose that there is a plane flying over the earth, equipped with a cannon that is pointed towards...
Questions
Questions on the website: 13722361