What is the relationship between mass and the lifespan of a star

All forces result because of? between objects?

What causes the spiral structural in milky way?

Which of the following describes the bending of light due to a change in its speed? A. reflection B. transmission C. refraction D. absorption

Add the following displacement vectors: 12 m south and 15 m 55° E of N?

A ball of radius 13 has a round hole of radius 6 drilled through its center. find the volume of the resulting solid.

Which of the following can be determined by studying the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star all of the above

How do I find the specific heat of an object?

In order to be considered scientific, evidence must be:

An unknown material has a mass of 5.61 kg, and its temperature increases by 0.124°C when 1320 J of heat are added. What is the specific heat of the material? (Unit = J / (kg*C))

What is the speed of a 1.0 * 103-kilogram car that has a momentum of 2.0 * 104 kilogram∙meters per second east?