A boulder with a weight of 780 N is resting at the edge of a cliff that rises 123 m above the ground. What is the gravitational potential energy of the boulder?

A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the same, and they have the same mass.

Which conditions produce low pitches from a guitar string? a. short strings, more tension, thick strings b. long strings, less tension, thick strings c. short strings, less tension, thin strings d. long strings, more tension, thin strings

Which property do metalloids share with nonmetals A. Both are gases at room temperature B. Both can react to form acidic compounds C. Both are very poor electrical conductors D. Both can be pounded into thin sheets

What is the mass in grams of 0.338 mol of glucose (C6H12O6) ? step by step

According to the rule of 72 and about how many years will $78 be worth $39 if the rate of inflation is 5.8%

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Why does a buoyant force act on every object in a fluid? Pressure pushing up on the bottom of the object is greater than the pressure pushing down on the top.