A 2.20 kg mass is at the origin. A 4.66 kg mass is 3.00 m to its right,
and another 4.66 kg mass is 3.00 m
to its left.
What is the net gravitational force
on the 2.20 kg mass?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?