Answer:
-929.5Joules
Explanation:
To get the work done by sam, we will calculate the kinetic energy of sam expressed as;
KE = 1/2mv²
m is the mass = 1100kg
v is the velocity = 1.3m/s
KE = 1/2(1100)(1.3)²
KE = 550(1.69)
KE = 929.5Joules
Since Sam is opposing the direction of movement, work done by him will be a negative work i.e -929.5Joules
The answer is “Heating Technician” or “Heating, Ventilation,
and Air Conditioning Technician or HVAC”. The heating technician is responsible
for determining what the current flow is through the heating control circuit.
HVAC Technicians are the individuals responsible for installing and repairing
home heating and air quality systems, refrigeration systems are included as
well. They may specialize in installation or repair and in certain types of
systems or equipment. HVAC Technicians also provide heating and cooling
services of buildings, HVAC systems are required industries for the
construction of new buildings.