The angle between the two force of magnitude 20n and 15n is 60 degrees (20n force being horizontal) determine the resultant in magnitude and direction
a. if the force are pull
b. the 15n force is a push and 20n force is a pull

explanation:

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1.            c. is smaller

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electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation