Did we invent math or did we discover it?
Answer:
A)mirror.
Explanation:
To read what DaVinci wrote, one has to use a mirror. This style of writing is known as mirror writing.
A mirror is an optical instrument that has smooth surface and can reflect light to form an image.
- When a mirror is placed in front of the image, it will show clearly and readable.
- Mirror images laterally inverts a text and will make the text normal again.
Complete question:
standard 14.16-inch (0.360-meter) computer monitor is 1024 pixels wide and 768 pixels tall. Each pixel is a square approximately 281 micrometers on each side. Up close, you can see the individual pixels, but from a distance they appear to blend together and form the image on the screen.
A) If the maximum distance between the screen and your eyes at which you can just barely resolve two adjacent pixels is 1.30 meters, what is the effective diameter d of your pupil? Assume that the resolvability is diffraction-limited. Furthermore, 550*10^-9m as a characteristic optical wavelength. Express your answer in millimeters to three significant figures.
B.) Assuming that the screen is sufficiently bright, at what distance can you no longer resolve two pixels on diagonally opposite corners of the screen, so that the entire screen looks like a single spot? Note that the size (0.360 meters) quoted for a monitor is the length of the diagonal. Express your answer in meters to three significant figures.
Answer:
a) 3.1mm
b) 1663m
Explanation:
Given:
Screen resolution =1024*768 pixel at approximately 281m each
a) Let's take sin∅ =
Solving for d we have:
d = 3.10mm
b) given:
y = 0.360m
We now have d= 3.1mm
To find L, we use:
L = 1663m
Answer:
Part a)
Part b)
Part c)
Part d)
Explanation:
Speed while she is running = 8.90 mph
speed while she walk = 3.80 mph
Part a)
Anya walks half the distance
so time to walk
time to cover the distance while she run
total time to cover the distance
Part b)
Average speed is given as
Part c)
Half the time Llya walks and next half the time she runs
so total distance is given as
so we have
Part d)
Average speed is given as