Answers: 2
Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
Physics, 21.06.2019 18:00
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
Physics, 21.06.2019 23:30
Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane
Answers: 2
Physics, 22.06.2019 08:00
Who was the first scientist to measure speed as distance over time?
Answers: 1
In order for work to be done, what three things are necessary?...
Mathematics, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44
History, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44
Social Studies, 31.01.2020 11:44
Geography, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44
Mathematics, 31.01.2020 11:44