Physics, 28.06.2019 09:50 asilverman
The speed of a tennis ball that is served is 73.14 m/s. during a serve, the ball typically starts from rest and is in contact with the tennis racquet for 30 milliseconds. assuming constant acceleration, what is the average force exerted on the tennis ball during the serve, expressed in terms of the ballās weight w? 450w 150w 250w 350w
Answers: 3
Physics, 22.06.2019 10:50
Two rigid transformations are used to map Ī“hjk to Ī“lmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k
Answers: 1
Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Physics, 22.06.2019 21:30
While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.
Answers: 1
Physics, 23.06.2019 05:00
Heating water for hot cocoa while sitting next to a campfire can be examples of conduction, convenction and radiation at the same time agree disagree it depends how you know
Answers: 2
The speed of a tennis ball that is served is 73.14 m/s. during a serve, the ball typically starts fr...
Mathematics, 07.11.2020 01:00
Social Studies, 07.11.2020 01:00
Mathematics, 07.11.2020 01:00
English, 07.11.2020 01:00
Mathematics, 07.11.2020 01:00
Mathematics, 07.11.2020 01:00
Health, 07.11.2020 01:00
Mathematics, 07.11.2020 01:00
History, 07.11.2020 01:00
Mathematics, 07.11.2020 01:00
Advanced Placement (AP), 07.11.2020 01:00