घरको माथिल्लो तलाको धारामा भन्दा तल्लो तलाको धारामा पानीको वेग बढी हुन्छ, किन ?
The speed of a water tap on the lower floor is higher than
on the upper flower of a house". Give the reason for this
phenomenon.
[2]
गति पाक्ति तीन कनैक भिन्नता लेनहोस​

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)