Activity: Reflection in a plane mirror s://phet. colorado. edu/en/...
e a look at the explanator...
ming Objectives
ivity: Reflection in a plane..
the normal line. See ima...
Make sure you have pressed the intro button
on the bottom of the page so the screen
looks like the image opposite.
- Note the "Normal" is the hatched vertical line
at 90° to the boundary.
DO
PRET
MMARY:
Drag the protractor so that the zero lines up
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.
O
PATE
Table 1
Angle of incidence
Angle of reflection
100
INTI
Ok

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.

The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength