What is the definition of friction?

Which statement is true about acceleration? A. It is the rate of change of speed per unit time. B. It is the rate of change of displacement per unit time. OC. It is the rate of change of velocity per unit time. D.

You need to make mashed potatoes, so you buy a 19 pound bag of Russet potatoes from the grocery store. To the nearest tenth of a kilogram, how many kilograms of potatoes are in the bag? Take a kilogram to be equivalent to 2.21 pounds.

Which of these has some mechanical energy? a: an atom b: heat inside earth c: a book on a shelf d: a fire from a lit match

100j of heat energy are transferred to 80 g of mercury. By how much does the temperature increase?

What type of wave allows you to hear sounds? electromagnetic longitudinal waves mechanical transverse waves mechanical longitudinal waves electromagnetic transverse waves

Describe three ways you can conserve energy in your own home

Which characteristics are used to identify types of metamorphic rocks? Check all that apply. color foliation rock size grain arrangement type of rock before metamorphosis

What is the definition of friction?

Why is money management important? how would you rate your own money management?

What substance is represented by chemical formula C60