Of the two components of a force which are perpendicular to each other, the magnitude of one component is 10 N and it
subtends an angle of 60° with the force. The magnitude of
the force is, approximately,

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

measure their densities same density, same sub

i think the answer is tomato juice? not entirely sure though