A cooling curve for a certain mass of molten candle wax is given below. 55
50
45
Temperature (°C)
B
40
A
30
2
4
5
6
8 9
10 :
12
nts
13
15
Time (minutes)
(1) Why is the temperature on the graph constant between A and B?
(ii) Use the graph to find the melting point of candle wax.

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Why should seat belts not be mandatory quick plz