Physics, 19.10.2021 02:30 erstaabi000
If a car is speeding down a road at 40 miles/hour (mph), how long is the stopping distance D40 compared to the stopping distance D25 if the driver were going at the posted speed limit of 25 mph? Express your answer as a multiple of the stopping distance at 25 mph. Note that D25 is already written for you, so just enter the number.
Answers: 2
Physics, 21.06.2019 18:20
An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n
Answers: 1
Physics, 21.06.2019 21:30
One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?
Answers: 3
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 13:10
Most short-period comets do not have randomly oriented orbits because
Answers: 2
If a car is speeding down a road at 40 miles/hour (mph), how long is the stopping distance D40 compa...
English, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50
Social Studies, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50
History, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50
Mathematics, 03.03.2021 20:50