Agrasshopper has a mass of 10g, it jumps 30m high ,assuming gravity is 10n what is the gpe of the grasshopper at the top of the jump

In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

What are two different ways you could find the value of a? explain these methods.