Answers: 2
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
Physics, 22.06.2019 17:40
Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
Answers: 2
Physics, 22.06.2019 23:10
An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.
Answers: 3
Which describes the path of a gas particle between collisions with other particles...
Geography, 24.07.2019 13:00
History, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
Geography, 24.07.2019 13:00
English, 24.07.2019 13:00
Mathematics, 24.07.2019 13:00
History, 24.07.2019 13:00