subject
Physics, 08.05.2021 02:10 billy1123

Please help Which of the following means that a lens causes light rays to spread apart?
A. +di
B. -di
C. -f
D. +f

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 13:10
The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.
Answers: 3
question
Physics, 22.06.2019 15:30
Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)
Answers: 3
question
Physics, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
Answers: 1
question
Physics, 22.06.2019 18:00
Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)
Answers: 3
You know the right answer?
Please help Which of the following means that a lens causes light rays to spread apart?
A. +...
Questions
question
Mathematics, 31.08.2020 20:01
question
Physics, 31.08.2020 20:01
question
Chemistry, 31.08.2020 20:01
question
Chemistry, 31.08.2020 20:01
Questions on the website: 13722367