Jake pulls a couch of mass 38 kg across his apartment. He pulls on the couch at an angle of 25 degrees with a force of 300 n . The free body diagram is shown below

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

What happens to an isotope during radioactive decay?