Questions in Grade High-school

Questions in Grade High-school

📝 Answered - An object is thrown off a cliff with a horizontal speed of 10 m/s. After 3 seconds, the object hits the ground. Find the height of the cliff and the total horizontal distance traveled by the object. a. What do you know? b. What do you need to solve for? c. What equation(s) will you use? d. What is the solution to this problem?

📝 Answered - Simplify this expression: \(\frac{x^2+6x+5}{x^2-25}\)

📝 Answered - At a speed of 22 revolutions per minute, how long will it take a wheel of radius 10, rolling on its edge, to travel 10 feet? (Assume [tex]p = \frac{22}{7}[/tex], and express the answer to the nearest 0.1 second.)

📝 Answered - A helicopter's speed increases from 25 m/sec to 60 m/sec in 5 seconds. What is the acceleration of this helicopter?

📝 Answered - Examples of analogous structures are: a. the tails of mice and rats. b. the limbs of humans and apes. c. the wings of bats and birds. d. all of the above

📝 Answered - Why is it extremely dangerous to eat the "destroying angel" mushroom?

📝 Answered - The most successful mammals are the: A. Marsupials, who practically have a whole continent to themselves. B. Monotremes, who have a very specific niche without competitors. C. Placental mammals, who have become dominant on most continents. D. None of the above.

📝 Answered - What is the difference between an organism's habitat and its niche?

📝 Answered - An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, answer the following: 1. How many electrons does it have? 2. How many protons does this atom have? 3. How many neutrons does this atom have?

📝 Answered - In gym class, you run \(\frac{3}{5}\) mile. Your coach runs 10 times that distance each day. How far does your coach run each day?