An object thrown in the air has a velocity after seconds that can be described by v(t) = - 9.8z + 24(m) meters/second) and a height h(t) = - 4.9t ^ 2 + 2t + 60 in meters). The object has n = 2 kilograms. The kinetic energy of the shirst is given by K= 1 2 mr^ 2 , and the potential energy is given by 19.5mh. Find an expression for the total kinetic and potential energy K+ U as a functim of time. What does this expression tell you about the energy of the falling object?

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

the answer is a if my teacher taught me correct

something over 10 so ? /10

step-by-step explanation:

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.