Use the drop-down menus to identify the types of properties described. Kerosene was commonly used in lamps because it burns easily.

The element nickel has a boiling point of 2,913°C.

Copper is used to make electrical wire because it is a good conductor.

Cesium produces an explosion when it is added to water.

Hydrogen is the least dense of all elements.

How do hydroponic plants differ from nonhydroponic plants? a.) hydroponic plants can grow in a dryer soil. nonhydroponic plants grow in moist soil. b.) hydroponic plants grow on other plants and are known as air plants. nonhydroponic plants do not grow on other plants. c.) hydroponic plants can only grow in rain forests. nonhydroponic plants cannot grow in rain forests. d.) hydroponic plants are grown without soil. nonhydroponic plants are grown in soil.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.