Mặt phẳng rất rộng, tích điện đều Q > 0. So sánh cường độ điện trường E do
mặt phẳng gây ra tại các điểm A, B, C.
A. EA > EB > EC.
B. EA = EB = EC.
C. EA = EB > EC.
D. EA = EB < EC

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

see earlier

3. dark matter

empty space could also be a simple vacuum

there are no atoms