Question
A _______ operation may give access to the top without
modifying the stack.Solution
In computer science, a stack is an abstract data type that serves as a collection of elements, with two principal operations: push, which adds an element to the collection, and pop, which removes the most recently added element that was not yet removed. The order in which elements come off a stack gives rise to its alternative name, LIFO (for last in, first out). Additionally, a peek operation may give access to the top without modifying the stack.
A positively charged particle enters a uniform electric field directed downward. The force acting on the particle is:
A spring of spring constant 500 N/m is compressed by 5 cm. The potential energy stored is:
What defines an ion?
Which of the following is a macronutrient?
Which of the following glands is both endocrine and exocrine?
Metalloids are
The force which opposes the relative motion between different layers of liquid or gases is called –
Deficiency of which vitamin leads to bleeding gums?
Shadows are formed when a/an _______ object comes in the path of light.
Which of the following physical quantities is not conserved in inelastic collisions?
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