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Acceleration in an Atwood Machine with Massive Pulley
Engineers at Indian Institute of Technology Delhi are designing a precision elevator calibration system using two masses connect...

4 mesi fa

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Mobile Charging Cable Resistance

4 mesi fa

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Electric Heater Safety Test
Engineers at Havells test a heater connected to 220 V supply. The heater resistance is 44 Ω. They need to calculate power consu...

4 mesi fa

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Power of Elevator Motor
P=W/t

4 mesi fa

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Newton’s Second Law – Motion on an Inclined Plane
In the mountainous region near Manali, a rescue team is testing a motorized emergency vehicle designed to climb steep slopes. E...

4 mesi fa

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Newton’s Second Law – Acceleration of Connected Objects
Engineers at Boston Dynamics are testing two robots connected by a rope on a frictionless surface. Robot A pulls Robot B using ...

4 mesi fa

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Motion of a Bead Sliding on a Rotating Rod (Non-Inertial Frame Dynamics)
Scientists at Indian Space Research Organisation are testing artificial gravity inside a rotating space station module. Inside ...

4 mesi fa

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Tension in String for Circular Motion (Advanced Rotational Dynamics)
At the astronaut training facility of Indian Space Research Organisation, astronauts are trained using a rotating centrifuge. Th...

4 mesi fa

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Drift Velocity in Conductor

4 mesi fa

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The Square Tree of Power
As Arjun crosses the Dividing River, he enters a sacred clearing where a giant glowing tree stands in the center. This is the le...

4 mesi fa

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Work Done in Lifting an Object
Engineers at Larsen & Toubro are testing a crane used to lift heavy construction materials at a building site in Mumbai. They n...

4 mesi fa

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Parallel Circuit in Home Wiring
Home appliances connected in parallel in a house in Gurgaon have resistances of 6 Ω and 3 Ω. Find equivalent resistance.

4 mesi fa

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Falling Object Velocity
Scientists at ISRO drop test equipment from a height to study motion under gravity. They must calculate the velocity just befor...

4 mesi fa

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Car Battery Internal Resistance
Engineers at Tata Motors test a car battery with: EMF = 12 V Internal resistance = 1 Ω External resistance = 5 Ω Find curren...

4 mesi fa

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Newton’s First Law – Force Needed to Start Motion
At Indira Gandhi International Airport, a heavy suitcase is sitting on a stationary conveyor belt. The belt is initially at rest...

4 mesi fa

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Roller Coaster Height Energy
At Imagicaa Theme Park, engineers calculate potential energy at the top of a roller coaster.

4 mesi fa

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Machine Efficiency Test
Engineers at Siemens test how efficiently a motor converts electrical energy into mechanical work.

4 mesi fa

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5-year Annedversaries
This is the Bonus Round problem for the 2025 Cody Contest. Attend the watch party on Friday, March 27 to see how 6 champions fro...

4 mesi fa

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[Master Regular Expression] Keyboard Row
Given an array of strings words, return the words that can be typed using letters of the alphabet on only one row of American ke...

5 mesi fa

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Built-out FFTShift
The task in hand is to replicate the built-in function - fftshift (with single input), but without using the function. However,...

5 mesi fa

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Gene Duplication with Sequencing Errors
You are investigating the genome of the bacterium Codex matlabius. A virus that infects C. matlabius is known to insert long, re...

5 mesi fa

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Jump Game
Bạn được cho một mảng số nguyên nums. Ban đầu bạn được đặt ở vị trí chỉ mục đầu tiên của mảng, và mỗi phần tử trong mảng biểu th...

5 mesi fa

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Comparing to scale all terms versus one term of even-degree polynomial by the same scale factor
Let p be an even-degree polynomial with positive leading coefficient. Consider the scale factor, k, that vertically transforms ...

5 mesi fa

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Leo Bậc Thang
Bạn đang leo cầu thang. Cần n bước để lên đến đỉnh. Mỗi lần bạn có thể leo 1 hoặc 2 bước. Hỏi có bao nhiêu cách khác nhau để le...

5 mesi fa

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Breaking straight lines
Let P be a point in Oxy plane and let p be a 1×2 array representing an one-degree or zero-degree polynomials, if its first entry...

5 mesi fa

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Hình chữ nhật lớn nhất trong biểu đồ Histogram
Cho một mảng các số nguyên heights biểu thị chiều cao của các cột trong biểu đồ tần số, trong đó chiều rộng của mỗi cột là 1, hã...

5 mesi fa

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Find nth triangular number.
Calculate the triangular number of given integer n.

5 mesi fa

Risolto

Find record values in a sequence
Write a function to find the record values in a sequence—that is, the largest values seen since the start. For example, if the s...

5 mesi fa

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Gather primes
A book titled Gather that I regularly see inspired this game: make as many words as possible from the letters in the word GATHER...

5 mesi fa

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Scaling vertically parabola by evaluating its area over an interval
Let p be a quadratic polynomial, with its axis of symmetry being the y-axis. Considering the vertical shift of its vertex to the...

6 mesi fa