Answer:
The tension in the string is equal to Ct
And the time t0 when the rension in the string is 27N is 3.6s.
Explanation:
An approach to solving this problem jnvolves looking at the whole system as one body by drawing an imaginary box around both bodies and taking summation of the forces. This gives F2 - F1 = Ct. This is only possible assuming the string is massless and does not stretch, that way transmitting the force applied across it undiminished.
So T = Ct
When T = 27N then t = T/C = 27/7.5 = 3.6s
Refraction is the bending of a wave disturbance as it passes at an angle from one medium into another
Answer:
The plants depend on animals and animals depend on plants.
Plants depend on animals for nutrients, pollination and seed dispersal. Animals are totally dependent on plants. First of all plants produce oxygen which is vital for life on earth. Then, for many animals plants are their basic food, or if plants don’t make up 100 % of their diet, plants are nevertheless essential in their food supply.
Faults are cracks on the ground that is caused by the movement of the plate tectonics. They usually cause rocks to break.
Anitclines and synclines form when rocks are also put under stress, but they fold, not necessarily break apart. They create sharp folds.
Island arcs are formed through volcanic events and not rocks.
Mid ocean ridges are formed when oceanic plates move apart.
Looking at their differences, the answer to your question is B.
