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Sled w/ mass 10kg is pulled right by force of 1x102N the force of friction opposing the pull is 6x101 N Whats the acceleration of the sled? I’m struggling in Algebra 2 and Physics... anyone have tips ? A person stands at 305 m in front of the face of a sheer cliff. If the person shouts, how much time will elapse before an echo is heard? What does this line mean, “it’s a saturn world” ? H(x) = −xf(x), where f is a function such that f′(x) = sin(1 − x^2) + √7. (Your answer might involve the function f.)?