Physics, 04.03.2020 23:24 lyhkng2720
At an accident scene on a level road, investigators measure a car’s skid mark to be 78 m long. It was a rainy day and the coefficient of friction was estimated to be 0.30. Use these data to determine the speed of the car when the driver slammed on (and locked) the brakes. (Why does the car’s mass not matter?)
Answers: 3
Physics, 22.06.2019 04:50
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 16:30
Write a polynomial function with the given zeros x= -1,0,2show your work
Answers: 3
At an accident scene on a level road, investigators measure a car’s skid mark to be 78 m long. It wa...
Mathematics, 28.11.2019 19:31
Chemistry, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Chemistry, 28.11.2019 19:31
Geography, 28.11.2019 19:31
Chemistry, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Physics, 28.11.2019 19:31
Computers and Technology, 28.11.2019 19:31
Social Studies, 28.11.2019 19:31
English, 28.11.2019 19:31
Mathematics, 28.11.2019 19:31
Biology, 28.11.2019 19:31