The sun is 1.5 X 1011 m from earth. Light produced by the sun travels toward the earth a constant speed of 3 X 108 m/s. If the sun suddenly vanished from the sky, how long would it take for people on earth to see that the sun had disappeared?

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving