Physics, 25.02.2020 05:00, corrineikerd
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.35 × 10 5 2.35×105 W. Find the intensity of the sound at a distance of 51.3 51.3 m from the engine and calculate the corresponding sound intensity level.
Answers: 1
Physics, 22.06.2019 07:10, PastyMexican24
1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?
Answers: 3
Physics, 22.06.2019 19:40, flore9584
Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.
Answers: 2
Physics, 22.06.2019 20:30, mooreadrian412
You are doing a science experiment with a fahrenheit thermometer. your data must be in degrees celsius. if you measure a temperature of 125°f, what is this temperature in degrees celsius
Answers: 1
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.35 × 10 5 2.3...
Mathematics, 18.03.2020 05:44
Mathematics, 18.03.2020 05:44
Computers and Technology, 18.03.2020 05:44
Mathematics, 18.03.2020 05:44