Plz help 1 : Give an example of motion in which acceleration of an object is against direction of motion
2 : Define uniform acceleration . What is the acceleration of body moving with uniform velocity ?
3 : How long will it take for a body accelerating by 2 m/s^2 to gain a velocity of 10 m/s starting from rest .

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

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.

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?