List at least 2 actions that involves a chemical change

What can happen to the motion of an object when there is a resultant force on it

If a wave has a frequency of 4 Hz and a speed of 24 m/s, which is its wavelength?

A curve ball's path bends to the right as it flies towards homeplate because it experiences an aerodynamic force to its right.

A small block of mass 0.91 kg slides without friction on a horizontal table. initially it moves in a circle of radius r0 = 0.63 m with a speed 1.5 m/s. it is held in its path by a string that passes through a small hole at the center of the circle.

For the chemical reaction C2H6 - - > C2H4 + H2 + 137kJ, the chemical energy of the A. reactant and the chemical energy of the products are equal. B. reaction cannot be calculated. C. reactant is greater than the chemical energy of the products. D.

The space shuttle undergoes an acceleration of 53.9 m/s2. How fast is it traveling at the end of 55.2s

Which of the following has the greatest amount of kinetic energy a) slice of pizza b) a person at the top of the stairs c) wind d) a book on a table

Physical properties within a period are more alike than physical properties within a group. True false

A 50-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 30.0° below the horizontal is applied to the box. The coefficient of static friction between the box and the surface is 0.

As you heat a steak on a grill, what kind of energy are you increasing in the steak?