Under standard conditions on earth, 1 kg = 9.8 newtons. what would the mass of an object be on mercury if the same object weighed 45.0 newtons on earth?

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?