# Nikolaos Nikolaou

Physics , Wholesale auctions , Crypto Mining , Renewable Energy

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**Content Feed**

Solved

Function substitution (1)

Evaluate the function for the given values of the variables N and t

12 giorni ago

Solved

Array Concatenation (2)

Given two matrices, a and b, concatenate the two matrices vertically, i.e., the number of rows of the result should be equal to ...

12 giorni ago

Solved

Array Concatenation (1)

Given two matrices, a and b, concatenate the two matrices horizontally, i.e., the number of columns of the result should be equa...

12 giorni ago

Solved

Find the remainder - 02

Given an array of integers, find the remainder when the summation of all the elements is divided by N

14 giorni ago

Solved

Find the force required to support a lever

Students are designing a robot that will lift a block to the equilibrium position for transport to the scoring area. They have d...

14 giorni ago

Solved

Coefficient of Kinetic friction

A robot exerts a F1 lb. force horizontally on a W lb. crate across a concrete floor at a constant speed. What is the coefficien...

15 giorni ago

Solved

Calculate the acceleration of a crate

What is the acceleration of a crate if two robots apply F1 N and F2 N of force respectively and a frictional force of FR N acts ...

15 giorni ago

Solved

Coefficient of Sliding Friction

A weight of W1 N rests on a horizontal plane. The plane is gradually inclined until at an angle θ = Ao with the horizontal, the ...

15 giorni ago

Solved

Coefficient of Static friction

The coefficient of static friction between two surfaces is u. What force must be used to move a W lb. crate on a horizontal sur...

15 giorni ago

Solved

Linear Motion 1

An object travels N feet in the first second of travel, N feet again during the second second of travel and N feet again during ...

15 giorni ago

Solved

Linear Motion 2

During testing in the desert, a remotely operated vehicle travels D kilometers over rough terrain. The testing takes place over...

15 giorni ago

Solved

Linear Motion 3

Suppose a robot is moving in a straight line and steadily increases its speed. It moves from v1 ft/s to v1+2 ft/s in the first ...

15 giorni ago

Solved

Linear Motion 4

A robot accelerates at a rate of A ft/s2. Assuming the robot starts from rest how much time is required to reach an object loca...

15 giorni ago

Solved

Linear Motion 6

An experimental vehicle traveling at v1 m/s is brought to a full stop in t seconds. How far does it travel before stopping? Roun...

15 giorni ago

Solved

Linear Motion 7

A robot has a maximum rate of acceleration of a m/s2. If the robot starts from rest and reaches a velocity of v2 m/s. How far ha...

15 giorni ago

Solved

Unique - Very Very Large Numbers

Given a vector column, with some very large numbers, create the ascending sort and unique vector. *Input:* A (column vector)...

24 giorni ago

Solved

Magical Land

Mother Earth has gifted humanity a magical land to help all life on earth, in the shape of a n-sided regular polygon. You, bein...

26 giorni ago

Solved

Minimum number of children to distribute unequal cookie portions

A cruel parent wants to distribute N cookies such that it is impossible for every child to receive the same number of cookies. W...

29 giorni ago

Solved

List the semiprimes

A semiprime number—or a 2-almost prime—is the product of two prime numbers. The numbers and are semiprimes, but and are not....

circa 2 mesi ago

Solved

Find Min and Max Differences in a Vector

Given an array of integers, return the absolute largest and smallest (non zero) difference between any two numbers in the array....

circa 2 mesi ago

Solved

Determine if all elements are odd

Given an array, return true if all of the elements are odd. ex. x = [3 4 1] allOdd(x) ans = false ex. x = [3 5 7; 5 9...

circa 2 mesi ago

Solved

Find the number of primes leq than input

Given an integer n, determine the number of primes less than or equal to n.

circa 2 mesi ago

Solved

Sum of 2 numbers in array

Given an array and a target sum, return true if any 2 numbers in the array sum up to the given target sum. Both numbers cannot h...

circa 2 mesi ago

Solved

Momentum Calculation

A shopping cart of mass 'm1' is traveling with velocity 'u' and collides with a second shopping cart of mass 'm2.' The two shopp...

circa 2 mesi ago

Solved

Determine whether one vector is a subset of another

While bumbling through a pair of problems in the Number Theory group, I wrote code to determine whether a vector is a subset of ...

2 mesi ago

Solved

Sort vector by number of prime factors of each element

Sort a given array based on how many prime factors each term has. Sort from least to greatest and output original values. Ex: ...

2 mesi ago

Solved

Return longest string in 1-D array of strings

Find the longest string in an array of strings. Return an empty string if the initial array is empty. If there are multiple stri...

2 mesi ago

Solved

Extract the main diagonal of a matrix

Extract the main diagonal of a matrix and return as an array. For example, the main diagonal of the following matrix would be: ...

2 mesi ago