Answer:
Lasswell's 5 step model
Explanation:
This model of communication defines the answers to the questions who says, to whom, says what, the effects it was said with and in what channel.
Lasswell's 5 step model of communication was described as a single way process and was used for the analysis of mass communication, communication in groups and between people to disperse messages into these. It was designed for the purpose of studying and analyzing the business strategies and the media hype of different countries at that time.
I believe it is away from his arm since the question states his arm is applying an upwards force
Answer: Yes it possible for a system to have negative potential energy, since the choice of the zero of potential energy is arbitrary.
Explanation:
Potential energy is defined as the energy present in an object due to its position.
Mathematically, P.E = mgh
A potential energy can be negative also. This is because zero potential energy is arbitrary. For example, at the top of a building the choice of potential energy can be zero.
Therefore, the potential energy below the building will be negative.
Okay, I am going to use solar prominence and solar flares.
So, Solar Prominence is a large, bright, gaseous feature extending outward from
the Sun's surface, often in a loop shape. Prominence are anchored to
the Sun's surface in the photo-sphere, and extend outwards into the Sun's
corona.
A solar flare is a sudden flash of brightness observed near the Sun's
surface. It involves a very broad spectrum of emissions, requiring an
energy release of up to 6 × 10²⁵ joules of energy (roughly the
equivalent of 160,000,000,000 megatons of TNT, over 25,000 times more
energy than released from the impact of Comet Shoemaker–Levy 9 with
Jupiter).
Hope this helps
