Which of these is a mixture of elements?

a. silver and gold

b. carbon dioxide

c. salt and pepper

d. All of these are mixtures of elements.

A flashlight bulb operating at a voltage of 14.4 V has a resistance of 11.0 Ω. How many electrons pass through the bulb filament per second (e = 1.6 ' 10-19 C) ? (Give your answer to two significant figures)

39. Three 12 a resistors are connected in parallel and then connected to a 6.0 V battery. Find the resulting current. Show your work. This is a two part question. 40. The devices and outlets in each circuit in a household are wired in parallel.

Gravity is a force of attraction that acts

What is a good example for newton's 1st law

Which is equivalent to 243 2/5 3 6 9 12

Which of the following statements is true of the carbohydrate glucose? A. Glucose is a pentose sugar B. Glucose is a polysaccharide C. Glucose contains carbon, hydrogen, and oxygen atoms

Who first proved that the sun is not at or even close to the center of the milky way galaxy?

How does the potential energy of an object change when its height is tripled

Equal masses are suspended from two separate wires made of the same material. The wires have identical lengths. The first wire has a larger cross-sectional area than the second wire. Which wire will stretch the LEAST? a.

The milky way galaxy is the galaxy that is closest to us contains the most stars is farthest from us contains our solar system