Physics
Physics, 10.03.2021 23:20, hickslily9

A common design for a spotlight uses a lens and a mirror, combined with a gas-discharge lamp, to project a powerful parallel beam of light. Where are the lens and mirror positioned?

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 16:30, ericuh
Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.
Answers: 3
image
Physics, 22.06.2019 00:30, ddea4081
Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs
Answers: 1
image
Physics, 22.06.2019 07:50, dimondqueen511
Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1
Answers: 1
image
Physics, 22.06.2019 10:30, jadenp23
Which two particles are found in the center of an atom
Answers: 1
Do you know the correct answer?
A common design for a spotlight uses a lens and a mirror, combined with a gas-discharge lamp, to pro...

Questions in other subjects:

Konu
Mathematics, 25.01.2021 04:30
Konu
Chemistry, 25.01.2021 04:40
Konu
English, 25.01.2021 04:40
Konu
English, 25.01.2021 04:40