In order for objects to remain at rest what must be true?

What does earth's plate mean

Exercise is the one of the most important keys to wellness. T F

Why Apparent weight of substance is less than it Real weight?

Two football players with mass 75kg and 100kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively, If they grab each other as they collide, the combined speed of the two players just after the collision would be:

How would you calculate the spring constant of an unknown spring?

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

What is the acceleration of all objects due to gravity? What does this mean?