Which statement is true about the two stars labeled in this diagram?
Star A
Star B
This is an elliptical galaxy and Star A is older than Star B.
This is a spiral galaxy and Star A is older than Star B.
This is a spiral galaxy and Star B is older than Star A.
What is the answer?

Asample of a gaseous substance changes into a liquid

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.