Which of these describes a physical change? Choose the correct answer. O Wood logs are burned in a fire. O Coconut oil begins to crystallize after being placed in a freezer. O Milk left out of the refrigerator for a week starts to smell different. O Sodium hydroxide and hydrochloric acid are mixed in water to form a salt​

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length