Physics, 22.02.2022 21:50 Lilleypad07
A wheel and axle has an axle of radius 7cm and a wheel of radius 42cm. calculate the load lifted by the effort of 30N, if the efficiency is 70 percent
Answers: 1
Physics, 22.06.2019 06:40
Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?
Answers: 2
Physics, 22.06.2019 08:30
A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.
Answers: 3
Physics, 22.06.2019 10:00
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
A wheel and axle has an axle of radius 7cm and a wheel of radius 42cm. calculate the load lifted by...
History, 17.12.2020 02:30
Geography, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30
World Languages, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30
Computers and Technology, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30
Physics, 17.12.2020 02:30
Mathematics, 17.12.2020 02:30