Proton a Travels Northward with a Constant Velocity

question 25

Multiple Choice

Proton A travels northward with a constant velocity.Due north of proton A is proton B,traveling to the east at a different constant velocity.In what direction is the magnetic force on B?

• A)to the south
• B)to the west
• C)upward,out of the ground
• D)down into the ground
• E) There is no force on B.

---

Definitions:

Increasing-Cost Industry

An industry in which production costs increase as the industry's output expands.

Constant-Cost Industry

An industry where the cost of production does not change as the industry's output changes.

Increasing-Cost Industry

An industry in which costs per unit of output increase as the scale of output is increased due to factors such as shortages of resources or higher input costs.

Long-Run Equilibrium

A state in economics where all factors of production and outputs are variable, allowing for the adjustment to changes in demand, supply, and prices, resulting in a situation where firms earn normal profit.