Physics, 07.09.2019 19:20 hellenjones30p0kvtl
(a) how many electrons would have to be removed from a penny to leave it with a charge of +1.0×10−7 c? [4]
(b) to what fraction of the electrons in the penny does this correspond? [6]
[a penny has a mass of 3.11 g; assume it is made entirely of copper.]
Answers: 3
Physics, 22.06.2019 07:30, luckylady
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
Physics, 22.06.2019 15:00, lolweapon
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 2
Physics, 22.06.2019 22:00, MickeyAppleX
Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere
Answers: 1
(a) how many electrons would have to be removed from a penny to leave it with a charge of +1.0×10−7...
Mathematics, 05.06.2020 18:03
Mathematics, 05.06.2020 18:03
Mathematics, 05.06.2020 18:03
Mathematics, 05.06.2020 18:03