All such substances which are used by humans for their survival and welfare are called?

A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long and lies along the y axis within a uniform magnetic field, vector B = 1.70 k T.

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.147 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.

Name two elements that have similar properties. How can you tell using the periodic table?

A shell that is initially at rest explodes into two fragments, one fragment 25 times heavier than the other. If any gas from the explosion has negligible mass, then: a.

Ali has less mass flying in a jet high above the earth than when she stands on the surface of the earth. True False

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

The act, process or state of the change in place or position oa a body with respect to time and relative to the observer is said to be : - 1. Rest 2. Stationary 3. Motion 4. None of the above