A particle is launched from the origin on the ground with an initial velocity i = (2.40 m/s) £ + (2.00 m/s) §. The particle falls freely under earth's gravitational field. a. Find the angle at which the particle is launched at origin. (ang made to positive x axis). b. What its velocity at the highest position of the track. Write the velocity in unit vector form. c. What is the acceleration of the particle just after 0.1 sec its lunched?

Q: total acceleration

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.