suatu gelombang merambat pada tali yg panjang 40 cm, cepat rambatnya 20m/s tentukan besar periode serta frekuensi gelombang yg mlewati tali trsbut?

T = 1/50 s and f = 50 Hz

Explanation:

The computation of the size of the period and the frequency of the waves that pass through the rope is shown below:

As we know that

v = λ ÷ T

20 m / s = 0.4 ÷ T

20 m / s  ÷  0.4 = T  

T = 1/50 s

Now  

f = 1 ÷ T 

= 1 ÷ 1 ÷50 

 = 50 hz

Hence, the above represent the answer

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

increased stability in the completion of fluorine's outer shell.