Two conducting loops of the same diameter, #1 made of copper and #2 made of aluminum wires of the same length and cross-sections
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Given
The y-component of vector K is
The magnitude of vector K is , K=8 cm
To find
The angle
Explanation
Resolving K along its y-component we have,
Conclusion
The angle made with the x-axis is
Assuming the power delivered by the horse does not change, the speed of the cart will decrease.
In fact, the power delivered by the horse is the work done by the horse (W) per unit time (t):
<span>If several bags are added to the cart, the horse must do more work to transport them. Therefore, W in the fraction increases. But if the power P of the horse is constant, then it means that the time t must increase as well. So, the horse will take more time to transport the car, and this means that the speed of the cart has decreased.</span>
In fact, the power delivered by the horse is the work done by the horse (W) per unit time (t):
<span>If several bags are added to the cart, the horse must do more work to transport them. Therefore, W in the fraction increases. But if the power P of the horse is constant, then it means that the time t must increase as well. So, the horse will take more time to transport the car, and this means that the speed of the cart has decreased.</span>