The time of motion of the object at the given speed and distance is 4 seconds.
<h3>Time of motion of the object</h3>
The time of motion of the object is calculated as follows;
t = d/v
where;
- d is distance = 10 m
- v is speed = 2.5 m/s
- t is time of motion
t = 10/2.5
t = 4 s
Thus, the time of motion of the object at the given speed and distance is 4 seconds.
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10 joules of work is done by the object
This is true thermal energy is transferred from the warm gulf stream ocean water
Answer:
46°C
Explanation:
q = mCΔT
336,000 J = (20 kg) (4200 J/kg/°C) (50°C − T)
T = 46°C
Answer:
The electrical energy supplied is 0.233 kWh
Explanation:
Given :
Mass of air
kg
Initial temperature
298 K
Final temperature
350 K
Heat loss
kJ
From the first law of thermodynamics,
We know that internal energy is proportional to difference of temperature,

Now we need answer into kWh so ( 1 kWh = 3600 kJ ).
So we need to multiply (
)
kWh
kWh
Therefore, the electrical energy supplied 0.233 kWh