Ahot-air balloon is ascending at a rate of 12 m/s. when it is 80 m above the ground, a package is dropped over the side of the passenger basket. what is the speed of the package just before it hits the ground? give you answer in m/s. a) 39.6 m/s b) 29.3 m/s c) 41.4 m/s d) 28.0 m/s

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.

Blank liquids and gases exert a buoyant force on objects placed in them

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force