by zhanhongyuan | Jan 15, 2025 | Science
Home What are the basic components needed to build a simple robot at home? Answer 1 Lauren Burns To build a simple robot at home, you need a microcontroller (like Arduino), power source (batteries), motors, motor driver, sensors (e.g., ultrasonic), chassis/frame,...
by zhanhongyuan | Jan 15, 2025 | Math
Home How do you determine the area of a regular hexagon, given only the length of one side? Answer 1 Curtis Vasquez To determine the area of a regular hexagon given the side length ‘a’, use the formula: Area = (3√3/2) * a². This formula is derived from...
by zhanhongyuan | Jan 15, 2025 | Math
Home What is the least common multiple (LCM) of 4 and 6? Answer 1 Dawn Duran The least common multiple (LCM) of 4 and 6 is 12. The LCM is the smallest number that is a multiple of both 4 and 6. This can be found by determining the multiples of each number and...
by zhanhongyuan | Jan 15, 2025 | Math
Home What is the value of sin(30 degrees)? Answer 1 Michael Bass The value of sin(30 degrees) is 0.5. This is derived from the unit circle or trigonometric functions, where the sine of an angle in a right triangle is the ratio of the length of the opposite side to the...
by zhanhongyuan | Jan 15, 2025 | Math
Home How do you apply the Central Limit Theorem to demonstrate that the sampling distribution of the sample mean approximates a normal distribution, even when the sample data is not normally distributed? Answer 1 Michael Lane The Central Limit Theorem (CLT) states...
by zhanhongyuan | Jan 15, 2025 | Math
Home How do you calculate the probability of flipping a coin 10 times and getting exactly 6 heads and 4 tails using the binomial distribution formula? Answer 1 Anna Smith To calculate the probability of getting exactly 6 heads and 4 tails in 10 coin flips, use the...
by zhanhongyuan | Jan 15, 2025 | Science
Home What are the main differences between arterial and venous blood? Answer 1 Gabrielle Cruz Arterial blood is oxygen-rich and bright red, flowing from the heart to tissues, while venous blood is oxygen-depleted and darker, returning from tissues to the heart....
by zhanhongyuan | Jan 15, 2025 | Science
Home Why does ice float on water? Answer 1 April Waller Ice floats on water because it is less dense than liquid water. When water freezes, it forms a crystalline structure that occupies more space than liquid water, reducing its density. This phenomenon is due to the...
by zhanhongyuan | Jan 15, 2025 | Humanities
Home What were the main causes and consequences of the Cold War? Answer 1 Travis Castro The main causes of the Cold War included ideological differences between the capitalist United States and the communist Soviet Union, post-World War II power vacuums, and mutual...
by zhanhongyuan | Jan 15, 2025 | Science
Home What causes the different phases of the Moon? Answer 1 Linda Pollard The different phases of the Moon are caused by the relative positions of the Earth, Moon, and Sun. As the Moon orbits Earth, varying portions of its surface are illuminated by the Sun, creating...