2 If the mass of a proton Y's 1:67X10-2759 and the mass of an election is altx 1034
Calculate the force of gravitation between
i a protron and an election
two electrons
in two protrons
Take G= 6.67X 10" N m² kg , distance
between the protrons = 4.0m, distance
between the electrons = 2x 102m,
distance between the electrons ex 10²m
distance between the proton and the
electron -
5.4 x 10-11 m

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

What was the first instrument to ever record an earthquake?

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.