What term defines the specific amount of time required for half of a radioactive substance to become stable?

a. half-life

b. decay phase

c. decay period

d. a gamma second

What are non-clastic?

When in a hypnotic state, a person's brain waves will be most similar to what other state of consciousness? A. sleeping state B. waking state C. dozing state D. meditative state

Two elements in Period 4 that are most similar to Cobalt?

Which rock was subjected to intense heat and pressure but did not solidify from magma?

In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 2.0 m/s up a 20.0° inclined track. The combined mass of monkey and sled is 24 kg, and the coefficient of kinetic friction between sled and incline is 0.20.

Model rocket A is launched at an angle of 70° above the x axis, with an initial velocity of 40 m/s. An identical rocket B is launched under the same conditions at an angle of 90° above the x axis, also with an initial velocity of 40 m/s.

Why is it that when you throw a Frisbee, it flies better when it is normally thrown and not upside down?

Four blocks of weights are required using which any body whose weight is between 1kg and 40 kg can be weighed. Find the four weights

Use the graph to determine the instantaneous speed at 2 seconds. m/s What is the average speed over the entire trip? m/s

Most volcanoes are located at A. transform boundaries. B. midocean ridges. C. convergent and divergent boundaries. D. hot spots.