ANSWER:
It has the same intensity
EXPLANATION:
In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component.
If two or more components are connected in parallel they have the same potential difference ( voltage) across their ends. The potential differences across the components are the same in magnitude, and they also have identical polarities. The same voltage is applicable to all circuit components connected in parallel.
Refer to the diagram shown below.
The given data is
mass, kg Coordinates. m
------------- -----------------
2 (0, 0)
2 (2, 0)
4 (2, 1)
Total mass, M = 2+2+4 = 8kg
Let (x,y) be the coordinates of M.
Then, taking moments about the origin, we obtain
8x = 2*0 + 2*2 + 4*2 = 12
x = 1.5 m
8y = 2*0 + 2*0 + 4*1 = 4
y = 0.5 m
Answer: (1.5, 0.5) m
- Initial velocity=0m/s=u
- Acceleration=a=5.5m/s^2
#8.1
#8.2
Use third equation of kinematics
Answer:
B
Explanation:
The total amount of mechanical energy in a closed system without friction or air resistance remains constant. In other words, in the absence of friction potential energy can become kinetic energy. This would mean that if you were to apply friction then the kinetic energy would be reduced. In simpler words, friction reduces the motion of an object.
For example, a skateboarder going down a dry ramp would have less friction stopping them than a skateboarder going down a muddy ramp.
Answer:
d) the second law of thermodynamics
Explanation:
Here we take an example
The entropy represents a measurement of the energy dispersal in the system. Also, the campfire would an entropy example. The burning of the solid wood and then it became the ash, smoke and gases this all would be spread the energy to the outward as compared to the solid fuel
Therefore as per the given statement, the correct option is d.