Answer:
Step-by-step explanation:
let l be length of string.
Then 70/l=sin 40
l=70/sin 40 ≈108.9 ft
Answer b is correct because with e it equals the same spiny
Answer:
a. it has rotational symmetry with an angle of rotation of 90°
Step-by-step explanation:
Their are many different types of atoms in the universe. It can include the proton, neutron, and the electron. Also, the quark is a particle but is not found alot.
