A driver parked on a slight incline notices that the car on the left is moving forward at approximately 0.25 m/s. But when the driver looks at the parking meter on the right, he realizes it is his car that is moving. How fast is the driver moving with respect to the ground? 0.25 m/s, backward
0.5 m/s, forward
0.25 m/s, forward
0.5 m/s, backward

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the inner core.

good luck: )

klicker