the answer to this qustion is c friction force
Answer:
The magnitude of the magnetic force on the wire carrying greater current is is 4.85 x 10⁻⁴ N
Explanation:
Given;
distance of separation of the two wires, d = 18 cm
current in the first wire, I₁ = 8 A
current in the second wire, I₂ = 26 A
length of the wire, L = 2.1 m
permittivity of free space, μ₀ = 4π x 10⁻⁷ N·m/A = 1.257 × 10⁻⁶ N·m/A
The magnitude of the magnetic force on the wire carrying greater current is given as;
Therefore, the magnitude of the magnetic force on the wire carrying greater current is is 4.85 x 10⁻⁴ N
Answer:
In the given diagram Arrow Y indicates the second law of thermodynamics.
Explanation:
Second law of thermodynamics:
Total entropy of the system remains constant for an isolated system. If the amount of heat is converted into work there is loss of energy to the surrounding.
Arrow W:
It represent the work done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part doesn't represent the loss of heat to the surrounding. Thus, it do not indicate second law of thermodynamic.
Arrow Y:
It represent the heat added when work is done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part represents the absorption of heat to the surrounding. Thus, it indicates second law of thermodynamic.
Arrow Z:
It represent the work done by the piston for its movement. From second law of thermodynamic amount of heat is converted into work there is loss of energy to the surrounding.
This part doesn't represent the loss of heat to the surrounding. Thus, it do not indicate second law of thermodynamic.
Thus, only arrow Y indicates the second law of thermodynamics.
Answer:
<em>a. 137.5 m</em>
<em>b. 550 m</em>
Explanation:
<u>Accelerated Motion
</u>
If an object is changing its velocity at a constant rate, it has a uniformly accelerated motion. When the object is moving in one fixed axis, then the sign of the acceleration is negative if the object is braking, and positive if the object is increasing its speed.
The initial speed vo, final speed vt, acceleration a, and distance traveled x are related by the formula
a. The Race Car A has an initial speed of 55 m/s and it's said to stop. We must find at what distance it goes to vf=0. This means that the above formula becomes
Solving for x
The acceleration is , negative because it's against the movement. Thus
b. If the car is going twice as fast (v0=110 m/s), then