when javier sotomayor set the world record for the high jump by propelling his weight of 804.58 n over a bar that was 2.45m above the ground, he did what work

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f