![subject](/tpl/images/cats/fizika.png)
Physics, 06.07.2019 13:40 uehlingt39
Aplayer holds two baseballs a height (h) above the ground. he throws one vertically upward at speed (vo) and the other one vertically downward at the same speed. determine the speed of each ball when it strikes the ground and the difference between their times of flight.
![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 23:00
We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canaryââŹâ˘s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canaryââŹâ˘s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:10
Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:30
When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:20
The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.
Answers: 3
You know the right answer?
Aplayer holds two baseballs a height (h) above the ground. he throws one vertically upward at speed...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 21.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.10.2020 21:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01
![question](/tpl/images/cats/fizika.png)
Physics, 21.10.2020 21:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.10.2020 21:01