a parallel combination of a resistor and an unknown resistor is connected in series with a resistor and a battery this circuit i
1 answer:
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Answer:
x component is 60.60 N and y component is 35 N ⇒ answer A
Explanation:
A boy is pulling a wagon with a force of 70.0 N directed at an angle
of 30 degrees above the horizontal then,
is the horizontal component of the force in the direction
of positive part of x-axis
is the vertical component of the force force in the direction
of positive part of y-axis
The x component of the force is the force multiplied by
cos(30)°
The y component of the force is the force multiplied by
sin(30)°
→ The x component = F cos(30)
→ The x component = 70 cos(30) = 60.60 N
→ The y component = F sin(30)
→ The y component = 70 sin(3) = 35 N
<em>x component is 60.60 N and y component is 35 N</em>
Answer:
U
Explanation:
The first law of thermodynamics states that:
where
U is the internal energy of the gas, which represents the sum of the chemical and thermal energy stored in the atoms and molecules of the gas
represents the variation of internal energy
Q is the heat absorbed by the system
W is the work done by the system
So, the sum of the chemical and thermal energy stored in atoms and molecules is represented by U, the internal energy.