The given figure shows a man trailing a trolley bag. Suddenly, the wheels of the trolley bag get locked. The man realizes that he has to put extra effort to drag the bag. The man finds it difficult to drag because.

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.

What is the marginal cost of producing a fifth soccer net? $1.00 $1.50 $2.00 $2.50 the chart says soccer nets per day 1 2 3 4 5 total cost $7 $9 $10 $11 $13 marginal cost $7 $2 $1 ? ?

Which structures are found in animal cells? more than one question. a. lysosome b. cell wall c. cilia d. chloroplast