Point of correction, spring constant is 2.3×10−2 m not 2.3×10−2 m m
Answer:
28577 N/m
Explanation:
From Hooke's law, F=kx where F is force applied, k is spring constant and x is compression
F=mg=67*9.81
Approximately, 28577 N/m
Work = (force) x (distance)
62,500 joules = (boulder's weight) x (25 meters)
Divide each side by (25 meters) :
Boulder's weight = (62,500 joules) / (25 meters) = <u>2,500 newtons</u>
That's about 562 pounds.
Answer:
Explanation:
one leg is 6 inches, other leg is 6√3 inches.
By the diagram
the third side = 
let the angle is α
α = 35.3°
Answer: optio C. 6.
pH measures the acidity of the solutions.
pH 2 is highly acid and pH 12 is highly basic (alkalyne).
You can be sure that the pH of the solution will be intermediate between 2 and 12.
Given that the volumen of the two solutions are equal the pH of the resulting combination cannot be so close to the original solutions. That takes you to eliminate all the options except the option C. 6.
You cannot be sure that the final pH will be 6, because that will depend on the stregths of the two original solutions, that is why the question asks for the most likely resulting pH, and the answer is optio C. 6.
