Answer:

Explanation:
Net external force that exerted on the block is given as

here we know that



now we have

so we have

now the force exerted by bigger block on smaller block is given as



now we know that two blocks will exert equal and opposite force on each other
so here the force exerted by 2 kg block on 4 kg block will be

The world is running dangerously low on milk so he is going all around the world looking for affordable milk just because he loves you so much and needs to get you that milk
Pacemaker........................................................
Answer:
It ensures the doors seal properly when closed. This seal will fend off the elements, and prevent water from leaking inside the vehicle. It is further used on windows to seal and protect the windows.
Explanation: