Alpha particles are made of two protons and two neutrons. mp=1.673 x 10-27 kg; m, = 1.675 x 10-27 kg; qe = 1.60 x 10-C
6.
Find the electric force acting on an alpha particle in a horizontal electric field
of 6.00 x 102 N/C.
7. What is the acceleration of this alpha particle?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )