![subject](/tpl/images/cats/fizika.png)
Physics, 02.10.2020 19:01 arnold2619
Provide the equation used to compute SPL (in dB) from sound pressure in µbars. If a bulldozer emits a sound level of 90 dBA, what is the sound level (dBA) of two bulldozers next to each other?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
Choose each of the settings that follow and list them below do it ill mark brainliest first object= position= speed= acceleration= second object= position= speed= acceleration=
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:50
Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 18:50
8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.
Answers: 3
You know the right answer?
Provide the equation used to compute SPL (in dB) from sound pressure in µbars. If a bulldozer emits...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/istoriya.png)
History, 08.11.2019 01:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/istoriya.png)
History, 08.11.2019 01:31
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.11.2019 01:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 08.11.2019 01:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 08.11.2019 01:31
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 08.11.2019 01:31
![question](/tpl/images/cats/biologiya.png)