2) An object tied to the end of a string moves in a circle. The force exerted by the string depends on the mass of the object, its speed, and the radius of the circle. What
combination of these variables expresses the relation?​

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Which of the following is not am example of a polymer? protein nylon kevlar concreta

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?