One can increase the insolation upon a one ft2 horizontal plate ...

[acc299]

One can increase the insolation upon a one ft2 horizontal plate by ________.
 a. using a fresnel lens of one ft2
  b. using two 1 ft2 fresnel lenses, one on top of the other
  c. adding reflectors around the plate
  d. increasing the temperature of the plate
  e. increasing the absorption of the plate

Question 2

A horizontal uniform meter stick supported at the 50-cm mark has a mass of 0.50 kg hanging from it at the 20-cm mark and a 0.30 kg mass hanging from it at the 60-cm mark. Determine the position on the meter stick at which one would hang a third mass of 0.60 kg to keep the meter stick balanced.
 a. 74 cm
  b. 70 cm
  c. 65 cm
  d. 86 cm
  e. 62 cm

[firehawk60]

Answer to Question 1

c

Answer to Question 2

B

[acc299]

Both answers were spot on, thank you once again

[firehawk60]

Great! Please up vote