Melting, boiling, anf bending are physical changes but why is burning a chemical change

Why might DNA mutation occur?

A student throws a 0.160-kg ball straight upwards to a height of 4.70 m. How much work did the student do?

The sudden drain of a magma chamber can form a caldera. True False

Which law predicts that a projectile will accelerate downward at the same rate as a dropped object? Newton's Second Law of Motion Newton's First Law of Motion Newton's Fourth Law of Motion. Newton's Third Law of Motion

What nutrient is easiest to be broken down and absorb energy?

A rectangular loop of wire with sides 0.262 and 0.401 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.

In the system you're inspecting the damper motor isn't working, You decide to see if the damper-postion sensor us sending the proper signal to the which then signals the damper motor. A. heating coil B. duckwork c. energy source D. controller

Which of the following statements does not describe the structure of an atom? a. An atom has a small, dense center called the nucleus. b. Inside the nucleus of an atom are protons and electrons. c. Protons are positively charged sub-atomic particles.

A. Which skill related fitness component is your strongest and weakest?

A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 50 N C. 87 N D. 100 N