The answer would be c because a surface wave travels between two different materials, like air and water.
Answer:
a=2 ok do it and ........
Answer:
The last one makes the most sense as they combine two like things that are easy to visualize
Explanation:
The tape is charged by friction and her hand has an induced opposite charge. They therefore attract.
Answer:
resultant force = (f1²+f2²)½
=(1.5²+2²)½
=(2.25+4)½
=(6.25)½
=2.5
Explanation:
okay this question seems easy. now if the 1.5 is vertically upwards so is that 2 is horizontally downwards hence as u say its 90 degrees thn it forms a right angled triangle.
