Answer:
what do you mean ???????????
Answer:
Efficiency of wedge is the ratio of "work done by the machine to the work supplied to the machine".
Efficiency (η) = Work done by machine ÷ Work supplied
= 65 ÷ 75
= 0.86%
<em>Efficiency of wedge is 86%</em>
The force of the push and acceleration of the cart are related such as The unbalanced push causes the cart to accelerate.
X-rays have high energy and can penetrate matter that light cannot.
Answer:
Electrical energy powers most household appliances.