Physics
Physics, 27.02.2021 04:10, mommer2019

Id do this but where I live is really rainy. So can someone help me out? a. Go outside on a sunny day and put the piece of paper on a patch of asphalt, concrete, or a large flat rock. Make sure there is no other combustible material or debris in the vicinity.

b. Hold the magnifying glass so it is close to the paper, with rays of sunlight shining through it. Move the magnifying glass side to side and close or away from the paper until the most concentrated ray of light is shining on the paper. This is the focal point for that magnifying glass.

c. Measure the distance between the focal point and magnifying glass. This is the focal length for that magnifying glass. (Be careful; if you hold the magnifying glass in that place for long enough, the paper will catch fire. Do not ever do this on your skin or clothing, as it can cause serious burns.)

d. Now take the magnifying glass inside and use it to look at the words in a book. What is the focal length now?

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:30, mmaglaya1
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 1
image
Physics, 22.06.2019 05:20, luceridiaaz
Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
Answers: 1
image
Physics, 22.06.2019 05:30, justin5647
Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon
Answers: 2
image
Physics, 22.06.2019 16:00, postorivofarms
The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )
Answers: 2
Do you know the correct answer?
Id do this but where I live is really rainy. So can someone help me out? a. Go outside on a sunny d...

Questions in other subjects: