Aplant worker accidentally breathes some stored gaseous tritium, a beta emitter with maximum particle energy of 0.0186 mev. the energy absorbed by the lungs, which have a total weight of l kg, is 4 x 10^-3 j. how many milli-rems dose equivalent was received?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination. at the turning point, how far is the second student from the destination?

How many electrons does each element require in its valence shell to become stable?