hai quả cầu nhỏ mang 2 điện tích có độ lớn bằng nhau,đặt cách nhau 10cm trong chân không thì tác dụng lên nhau 1 lực là 9.10^-3N. Xác định điện tích của 2 quả cầu đó

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

Due sun 06/09/2019 11: 59 pm skip navigation questions correct q 1 [1/1] correct q 2 [1/1] correct q 3 [1/1] untried q 4 (0/1) untried q 5 (0/1) untried q 6 (0/1) untried q 7 (0/1) untried q 8 (0/1) untried q 9 (0/1) untried q 10 (0/1) grade: 3/10 print version start of questions two cyclists, 42 miles apart, start riding toward each other at the same time. one cycles 2 times as fast as the other. if they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist?