Why there are two high and two low tides in a day?

15 can someone translate this paragraph to german? (i created all and the incident went so complicated so most of them might not be senseful but the only important thing is translating not harmony of the text.)

What ingredient is used in german käsekuchen that is not used in its american counterpart? a- quark. b- pudding. c- yeast. d- cheese.

Sebuah lampu pijar mempunyai daya 60 w pada tegangan 220 v bila lampu tersebut di pasang pada tegangan 110 v maka daya lampu tersebut adalah