Answer:
<em>A</em><em>.</em><em>increases</em><em> </em><em>friction</em>
Explanation:
Answer:
Aerobic exercise became part of this movement in the 1970s.
Answer:
The people with caculators will probably answer faster due to thier ablitiy to use a device of technology
As we know that force F makes an angle of 60 degree with X axis
so the X component is given as

now we have


Similarly we know that force F makes an angle of 45 degree with Y axis
so the X component is given as

now we have


Now for the component along z axis we know that

now plug in all components





This can be seen as a trick question because heat engines can typically never be 100 percent efficient. This is due to the presence of inefficiencies such as friction and heat loss to the environment. Even the best heat engines can only go up to around 50% efficiency.