The diagram below shows the layers of rock that make up the Grand Canyon. What does the law of superposition say about how the Grand Canyon has changed over time? A. The Grand Canyon was once underwater because the newest rocks are found at the bottom-most layers.
B. The Grand Canyon divided into layers of different rocks because of cracks that arose from volcanic eruptions.
C. The Kaibab Limestone used to be underground but was elevated as the layer pushed upward through Earth’s crust.
D. The top layer may once have been Redwall Limestone, but over time sediment continued to build up and now Kaibab Limestone is the top layer.

Aman does 500 j of work pushing a car a distance of 2 m. how much force does he apply? assume there is no friction. a. 250 n b. 1000 n c. 125 n d. 500 n

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7