After a supernova explosion the core of a star may become a? A. Red supergiant B. Neutron star C. Black hole D. neither a neuron star or a black hole.

Is physics and physical science the same thing?

The area in which the attraction and the repulsion of a magnet's poles are felt is a (n)

Explaining How Light Bends in Explain how light bends during diffraction

Which is a set of valid quantum numbers? n = 4, l = 4, m = 4 n = 1, l = - 2, m = 0 n = - 1, l = 0, m = 0 n = 4, l = 3, m = 3

What value should be in place of the X

A star has a mass of 1.36 x 1030 kg and is moving in a circular orbit about the center of its galaxy. the radius of the orbit is 2.1 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.1 x 10-15 rad/s.

Floating in deep space, you find yourself at rest next to a small asteroid. You reach out and tap the asteroid with a hammer. What happens to you in this process?

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slows down and walks forward at 1.0 m/s for the next 4s. Make a distance-time graph of your motion and your friend's motion.

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i. e, what is the motion's frequency?