subject
Physics, 24.05.2021 18:20 fangirl2837

A car is traveling on a straight road on from A to D The distance from City A to City D is 60 miles and the cities are evenly placed along the route. There are cell phone towers in each city. Each tower has a range of 10 miles in all directions. 1. Suppose that the car is traveling at 50 mph. What percentage of the time for the trip between cities A and D is spent within range of the station in City A? City B?
2. Suppose that the velocity of the car is given by
r(t)={ 60t tsi where t is measured in hours and rl(t) in mph
120-60t
a) Also suppose that att O the car is at City A. How long does it take the car to make the trip? Show
b) For how long is the car within range of the station in City A? City B? Again, show work work
3. Do you think it is possible to start driving from City A, stop driving at City D, and maintain the same percentage of time within range of each location? If so, draw a graph of the velocity of a car on such a trip and explain. If not, explain why not. 4) Given the velocity of the car as described in Part 2, do you think that you could move the towers to other locations in such a way that the car would spend the same amount of time within range of each tower. Is so, justify your answer and sketch a configuration that would work. If not, explain why not.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 3
question
Physics, 22.06.2019 00:30
Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame
Answers: 2
question
Physics, 22.06.2019 11:20
Sound is a disturbance that travels through a medium as a
Answers: 1
question
Physics, 22.06.2019 16:20
Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
Answers: 1
You know the right answer?
A car is traveling on a straight road on from A to D The distance from City A to City D is 60 miles...
Questions
question
History, 12.02.2020 23:09
question
Mathematics, 12.02.2020 23:09
Questions on the website: 13722361