The sun is approximately 25,000 light years away from the centre of the milky way and moves around it, in an approximately circular path, in roughly 170 million years. let m be the mass of the galactic matter within a radius of 25,000 light years from the galactic centre. given that sunlight take approximately 8 min to reach the earth, what is the ratio of m to the mass of the sun? (a) 1.5x10 (b) 5x10 (d) 5x1012 (c) 1.5x1012

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

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.

Acorporation gives out its profits as dividends paid to whom?