Edu/en/... with the normal line. See image opposite.
- Rotate the light source so it is pointing at the
10° angle, note To the normal. Measure the
light bouncing OFF the surface only and write
it in table 1.
anator...
PIZT
a plane...
Table 1
ee ima...
Angle of incidence
Angle of reflection
10°
20°
30°
40°
I
50°
60°

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?