A brick is sitting on a platform 90 m high. It weighs 122 N. What kind of energy does the block have? Calculate the energy.

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine