B. opposite charge and smaller mass
The answer is true. The blowing fan force the hot air to go through the process of convection .
You get the net force acting on it ... the sum of the strengths and directions
of all the individual forces there may be.
Both of your answers are correct
Answer:
They can do this with the help of mechanical power generated from the human muscle.
Explanation:
Since rescue workers engage in missions where it is usually difficult for them to get electrical energy to their devices and working tools, they could employ various materials that can be sourced around them to get energy to their tools. One of such is the mechanical power generated from the human body through squeezing and compressing.
Some green devices such as the dyno torch have been designed to be powered through this method. Repeated squeezing of its flywheel allows light to be generated.
