Work done (as a measure of energy) = force x distance. Use this equation to show that the SI base units of energy are kg m^2 s^-2

How many chromosomes does an elephant's egg cell have?

An igneous rock becomes buried, is subject to high heat and pressure, and recrystallizes. This rock then is eroded, transported, deposited and subsequently lithified. Which rock types-in order-did the original igneous rock develop into?

Why is work and potential energy the same thing

In which of these reactions is energy released? A. endothermic reactions B. exothermic reactions C. no reactions D. all reactions

Which has the greasy momentum? a.) a 80 kg police officer walking at + 2 m/s b.) a 35 kg golden retriever moving at + 5 m/s c.) a 1 kg meteor falling with a velocity of + 170 m/s d.) a 4 kg physics textbook sliding across a table at + 15 m/s

What does it mean when we say an atom has decayed?

If the mass of a material is 77 grams and the volume of the material is 19 cm3, what would the density of the material be

A bicyclist is in a 50-km race. She says she had an average velocity of 35. What is missing in the cyclist's velocity? A. units only B. units and distance C. direction only D. units and direction

Which one of the following statements concerning emf is true? A) Emf is the work done in moving the current from one terminal to the other of an emf device.

A fan is a complex machine? True or false?