some galaxies have regions that are relatively blue other regions appear redder what does this varuation indicate about the differences between these regions?

What is the acceleration of a car that starts from rest and attains a final speed of 20 m '5 seconds?

An object with total mass mtotal = 15.9 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.6 kg moves up and to the left at an angle of θ1 = 20° above the - x axis with a speed of v1 = 28.1 m/s.

How does the sun's gravitational attraction impact Earth's motion?

A solid sphere is rolling on a surface. what fraction of its total kinetic energy is in the form of rotational kinetic energy about the center of mass

The temperature scale used in most of the world is the ...

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series