A radioactive socleus emits a beta particle of mass, m with a velocity of 2.2 x 10 ms. If the mass of the recoiling nucleus is 44,000m find the recoil velocity

The plum pudding model of the atom state that ?

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg