20 points
4. A second wave leaves the center of an earthquake at the same time,
The second wa...
![subject](/tpl/images/cats/fizika.png)
Physics, 10.11.2020 21:50 wdgyvwyv8840
20 points
4. A second wave leaves the center of an earthquake at the same time,
The second wave is a longitudinal wave. After 10 seconds, will the two
waves travel the same distance?
A. Yes, because both waves are longitudinal waves.
B. Yes, because all waves travel at the same speed in similar mediums,
C. No, because only one type of wave can travel through a medium at a time
D. No, because transverse waves travel at different speeds than longitudinal waves.
5. A whale makes a noise underwater that is too low-pitched for humans
to hear. What type of wave is this?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:00
Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:30
Which sections of the heating curve illustrate this process?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.10.2019 21:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.10.2019 21:30
![question](/tpl/images/cats/istoriya.png)
History, 01.10.2019 21:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.10.2019 21:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.10.2019 21:30
![question](/tpl/images/cats/istoriya.png)
History, 01.10.2019 21:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.10.2019 21:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.10.2019 21:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.10.2019 21:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 01.10.2019 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.10.2019 21:30