What is a pulsar?

a. the remains of a low-mass star after it explodes

b. a spinning neutron star emitted radio waves

c. another name for a protostar

d. the stage before a dying star becomes a supernova

What planet is closest to the earth?

In a chemical reaction, atoms are created or destroyed. True ore false ...

Which of these is true regarding weight but NOT mass? Question 1 options: a. Weight is based on density, mass is not. b. Weight is proportional to volume, mass is not. c. Weight changes based on inertia, mass does not. d.

Identify and define characteristics of both visible and sound waves. These include but are not limited to frequency, pitch, amplitude, volume, and wavelength

What will tightening the strings on a violin do? increase the pitch decrease the pitch have no effect on pitch

65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids.

Near which location in New York State would a geologist have the greatest chance of finding dinosaur footprints in the surface bedrock?

E=mc^2 solve for c E/m m/E sqrt (E/m) sqrt (m/E) E - m sqrt (E-m)

For resonance to occur, the object must experience a frequency equal to its what? amplitude period wavelength natural frequency

Rasheed runs a football 10 meters east, turns and runs the football 6 meters west. If his velocity during this run is found to be 3 meters/second, how long does this take Rasheed to complete this run?