Physics, 19.03.2021 19:20 ayoismeisalex
A 15 N force acts on a 0.4 kg baseball that is initially moving in the same direction of the force) at 6 m/s for 0.7 s. Determine the final velocity (in m/s) of the ball.โ
Answers: 3
Physics, 22.06.2019 09:50
If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
Answers: 3
Physics, 22.06.2019 10:30
You are given two vectors aโ =โ3.00ฮน^ 5.00j^ and bโ =5.00ฮน^ 2.00j^. let the counterclockwise angles be positive.
Answers: 3
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 15:20
Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change
Answers: 3
A 15 N force acts on a 0.4 kg baseball that is initially moving in the same direction of the force)...
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