Physics, 03.09.2019 23:10 Kaylinne1181
Two cars start from rest at a red stop light. when the light turns green, both cars accelerate forward. the blue car accelerates uniformly at a rate of 4.6 m/s2 for 4.4 seconds. it then continues at a constant speed for 8.5 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 247 meters from where it started. the yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop. 2)how fast is the blue car going 10.4 seconds after it starts? 3)how far does the blue car travel before its brakes are applied to slow down? 4)what is the acceleration of the blue car once the brakes are applied?
Answers: 1
Physics, 22.06.2019 15:50
An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 22.06.2019 17:50
Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system
Answers: 2
Physics, 23.06.2019 04:31
Ivana walks 2km north then turns around and walks 3km south
Answers: 1
Physics, 23.06.2019 07:30
What is the momentum of a 47-gram tennis ball that is traveling at 40 m/s
Answers: 2
Two cars start from rest at a red stop light. when the light turns green, both cars accelerate forwa...
Mathematics, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01
Biology, 16.10.2020 07:01
English, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01
Business, 16.10.2020 07:01