A sled is lifted to a height of 20 m on the slope and the mass of the rider is 65 kg. If gravity is a constant at 10 m/s2 calculate the following GPE at the highest point (GPE = mgh).
If energy is conserved in a system how much KE would this same sled and rider have at the lowest point.
At what position on the hill would the sled and rider have exactly half the total amount of energy?

Which of the following statements is true? question 4 options: nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not. neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction.

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Which statement best describes the he properties of iconic compounds ?