Sometimes scientists make a mistake, or ___, and need to do the experiment again?

A toaster uses 400 W of power. How much energy does it use in 5 seconds? A. 2000 J B. 1000 J C. 80 J D. 400 J

Why is salt water a better conductor of electricity than river water?

The white dwarf that remains when our sun dies will be mostly made of

Which of the following statements best describes the current state of understanding regarding the apparent acceleration of the expansion of the universe?

Which statement best describe he work of Marie and Pierre cutie? Check all that apply

A car traveling at a speed of v can brake to an emergency stop in a distance x. assuming all other driving conditions are all similar, if the traveling speed of the car doubles, the stopping distance will be

Why would an orange roll off your cafeteria tray if you stopped suddenly

Each shell is limited to a maximum of four electrons. True or False?

What is a hypothesis answer sentence for a lemon battery experiment

An object that is initially at rest on a frictionless floor is struck by a flying rock with an impulse jfonox. what is the final momentum of the object?