The answer is obvious acceleration lol sorry if it sounds mean
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia
Answer:
In 2.748 sec the mailbag reached the ground
Explanation:
We have given height from the ground
At t =2.25 sec helicopter releases a small mailbag so at t = 2.25 sec height from the ground
When the mail box is drooped its initial velocity would zero so u = 0 m/sec
Acceleration due to gravity
According to third law of motion
t = 2.748 sec
Answer:
Explanation:
The gravitational force acting on the ball, F = 10 N (down) The air resistance acting on the ball, f = 1 N (up) We need to find the magnitude of net force acting on the ball. The net force is given by : F' = 9 N. So, the net force acting on the ball is 9 N in downward direction. Hence, this is the required solution
A device that minimizes heat transfer is thermos. Technical name is vacuum flask.
<u>Explanation:</u>
Thermos is a bottle in which vacuum separates it from the surrounding. When the bottle is surrounded by the vacuum, there is a significant minimization in conduction.
The only part that having point of contact with the bottle inside is the thing which holds it in respective place. But there will be a small piece of contact, which will make the inner bottle to conduct heat to a small extent.