Physics, 18.06.2021 06:50 granthazenp5e9mj
Một vật nặng 223g đang nằm trên đường nằm ngang thì được kéo lên bởi lực 1,8N theo hướng hợp với phương ngang 30°. Biết hệ số ma sát giữa vật và mặt đường là 0,23 và gia tốc trọng trường là 10m/s2, lực ma sát tác dụng lên vật có độ lớn là:
Answers: 2
Physics, 22.06.2019 07:00
How do you tell if someone actually cares about you? and just say they do?
Answers: 2
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.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
Answers: 1
Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.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
Answers: 3
Physics, 22.06.2019 17:30
Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s
Answers: 3
Một vật nặng 223g đang nằm trên đường nằm ngang thì được kéo lên bởi lực 1,8N theo hướng hợp với phư...
Chemistry, 06.10.2021 14:00
Chemistry, 06.10.2021 14:00
Mathematics, 06.10.2021 14:00
Mathematics, 06.10.2021 14:00
Business, 06.10.2021 14:00
Social Studies, 06.10.2021 14:00
English, 06.10.2021 14:00
History, 06.10.2021 14:00