The graph below shows the percentage of unstable nuclei remaining of a radioactive isotope. Initially, there was 44g of the radioactive substance. How much of the substance is thereafter 60 minutes?

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal