Physics, 08.04.2020 15:58 bubbles173883
At the submicroscopic and microscopic levels temperature is proportional to the average kinetic energy of the particles of a substance
Answers: 1
Physics, 22.06.2019 02:10
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
Physics, 22.06.2019 08:00
Which notation is used to represent an alpha particle? a. b. c. d.
Answers: 1
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
Physics, 22.06.2019 18:30
Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size
Answers: 3
At the submicroscopic and microscopic levels temperature is proportional to the average kinetic ene...
History, 23.01.2020 01:31
Mathematics, 23.01.2020 01:31
Mathematics, 23.01.2020 01:31
Physics, 23.01.2020 01:31
Social Studies, 23.01.2020 01:31
History, 23.01.2020 01:31
English, 23.01.2020 01:31
Advanced Placement (AP), 23.01.2020 01:31