Answer:
The energy in kJ is 8558.16 kJ.
Explanation:
Data presented in the problem:
Water is heated from 70 (T1) to 200 °F (T2).
Volume (V) of the water is 1 ft3.
It is required for the specific heat of water(HW), which is 1 BTU/lb°F.
First, we need to calculate the mass of water (M) presented in the process. Water density (D) is 62. 4 lb/ft3.
M = V*D = (1ft3)*(62.4 lb/ft3) = 62.4 lb Water.
.After that, we can calculate the heat required (Q).
Q = M*HW*(T2 - T1) = (62.4 lb)*(1 BTU/lb°F)(200 °F - 70°F)
Q = 62.4 * 130 BTU = 8112 BTU.
Q is converted to kJ units using the conversion factor 1 BTU = 1.055 kJ
Q = 8112 BTU * (1.055 kJ/1BTU) = 8558.16 kJ.
Finally, the energy required is 8558.16 kJ.
Global Positioning System (GPS) is the device that helps increase field worker productivity by providing reliable location and time.
<u>Explanation:</u>
GPS, a satellite based and radio navigation oriented system. It can be accessible from anywhere in the world irrespective of obstructions in weather and extremely used by Air force.
With advancing technologies, the uses of GPS can be extended to improve the productivity of the workforce by identifying location services and field operation insights.
Today, GPS chips are built in various devices including smartphones, tablet, and other gadgets. It doe not need users to send data as it can work on internet reception.
Answer:
I select false because engineers are not the only thing we have, we have scientists doctors mathematicians and much more to give safety standards
