2. Take small but equal amounts of water and milk in two different but similar
containers. Freeze them by putting in a refrigerator. Now melt them in the sunshine,
boil them on the same stove under the same conditions, and evaporate them
completely. Note their temperature and time during changing of their states. What
similarities and differences you find while changing the states of both of the
materials. Support your investigation results with time and temperature graph
Answers
Answered by
0
Dette er ikke svaret ditt☹️
•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°.•°
✌️❣️
Let the height of the tree be y and width of the river be x and CD = 40 m
In ΔABD, tan 300 =
A
x
+
40
⇒ x+40 = y
√
3
………..(i)
In ΔABC,
tan 600 =
A
=
y
x
⇒ y = x
√
3
……………(ii)
Putting the value of y from (ii) to (i)
x+40= [x
√
3
]
√
3
= 3x
40 = 2x
⇒ x= 20
y = x
√
3
= 20
√
3
Height of the tree = 20
√
3
m
Width of the river = 20 m.
✌️❣️
Similar questions