Describe the energy transformations that takes place during the use of the following objects:

A. a burning candle

B. a light bulb

What are the short eruptions of intense high-energy radiation from the sun's surface called? Corona Prominences Solar flares Sunspots

A car is traveling at 30 meters per second. How far does the car travel in 2 minutes?

A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 241 torr. Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature.

What is a change in velocity per time

A ball rolls horizontally off a bookshelf of height 1.7 m with a speed of 2 m/s How long does it take the ball to reach the ground? O A. 1.25 O B. 0.595 OC. 0.85 O D. 0.33 s

Burning involves a chemical change. true or false

What is the fate of the universe knowing that heat flow from hot to cold until there is equilibrium of temperature?

Limestone chips dissolve after they are placed in a beaker of dilute acid. Which geologic process is this most similar to?

In air an object weighs 15N. when immersed in water it weighs 12N. when immersed in another liquid it weighs 13N. determine the density of d object and that of d other liquid

You wash the dishes. when you let the water down the drain, where is the water flowing the fastest?