Which of the following statements is true? If a hypothesis is proven false, a mistake has been made in the experiment.

The independent variable is what changes as a result of the dependent variable.

Changes in the independent variable cause changes in the dependent variable.

Once a hypothesis is proven true, it becomes a theory and cannot be disproved.

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

The statue of liberty is 305.5 feet high. when the angle of elevation of the sun is 50 , what is the distance to the tip of the shadow from a point at water level and directly below the highest point of the statue?