The energy of the Sun is produced in its A. corona. B. core. C. chromosphere. D. photosphere.

Is it possibke to start with 25g of reactants and end with 35g of products? why or why not?

A stopped car reaches 60 meters per second in 12 seconds. What is the acceleration?

As you sit on a dock, you notice a wave crest pass. you count another 16 wave crests in the next eight seconds. What is the period, wavelength, frequency, and speed of the waves?

Given the units of force, write a simple equation relating a constant force F exerted on an object, an interval of time t during which the force is applied, and the resulting momentum of the object.

What is the difference between contact forces and forces that act through a force field?

What did Issac Newton think he could describe?

Which two states share the property of changing shape in different containers? A. Liquids and gases B. Gases and solids C. Solids and liquids D. Solids and plasmas

Which type of soil is the most permeable? A. sand B. silt C. loam D. clay

If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does the scale says your weight is?

Which statement best describes the movement of particles when a wave travels through a medium? The particles are