Answers: 1
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, 22.06.2019 10:00
During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs
Answers: 1
Physics, 22.06.2019 13:10
A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
Answers: 3
Estimate the force on a 145-gram baseball if it hits the bat at 50 miles per hour and stays in conta...
Chemistry, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
English, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40
Mathematics, 09.12.2020 18:40