Physics, 05.08.2019 18:10 spiritcampbell56
A65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) what is the runner's kinetic energy at this instant? (b) if he doubles his speed to reach the finish line, by what factor does his kinetic energy change
Answers: 3
Physics, 21.06.2019 21:30
How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?
Answers: 1
Physics, 22.06.2019 02:00
What is created when solids,liquids,an gases mix with one another
Answers: 1
Physics, 22.06.2019 06:40
Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?
Answers: 2
Physics, 22.06.2019 12:00
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
A65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) what is the...
Chemistry, 12.05.2021 18:30
History, 12.05.2021 18:30
Mathematics, 12.05.2021 18:30
Social Studies, 12.05.2021 18:30
Social Studies, 12.05.2021 18:30
Chemistry, 12.05.2021 18:30
Biology, 12.05.2021 18:30
History, 12.05.2021 18:30
Social Studies, 12.05.2021 18:30
English, 12.05.2021 18:30
Mathematics, 12.05.2021 18:30
Mathematics, 12.05.2021 18:30