A spring is 14cm long. Three masses are hung from it and then it is measured again. Now it is 19.5cm long. What force did the three masses provide? The spring constant for the spring is 30N/m.

The Texas fight for independence was led by Sam Houston. true false?

What are two ways the Doppler effect can be applied in everyday life?

Which type of simple machine reduces the amount of input force needed?

What is a fracture in the crust called in which land stays in the same place? (a) joint (b) split (c) hinge (d) fault

In a positive correlation, when one variable increases, the other variable

Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to produce to propel Nikolas if he wanted to accelerate at a rate of 1.

A set of data is collected from a simple circuit with a 20 resistor and is represented in the table

A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v. Assume that the magnitude of the acceleration due to gravity is g. a.

8. What happens to force when mass is increased?

Give an example of ionic and covalent bond, and explain and make an example for each.