Let us assume that W is the width of the border tile (with the units of ft.). Also, let A be the are which is equivalent to 296 sqft.
<span>We establish this mathematical equation:
(28+2W)(42+2W)−28×42=296
</span>
Then algebraically manipulate:(14+W)(21+W)−14×21=74
<span>W2+35W−74=0</span>
Lastly, we factor:
(W+37)(W−2)<span>=0
</span>W=2
Answer:
Ok I'm not 100% on this one but, try 3 lifes sorry if u get it wrong D:
Explanation:
The answer to this problem can be given through energy conservation as well as Newton's first law.
Newton's first law states that as long as there is no force exerted on a body, its movement will be constant or at rest. In this way the amount of linear movement of the satellite before the explosion will be equal to the sum of the movement generated in the pieces after the explosion. In the absence of external forces but the preservation of the internal force as the only one to act, these will not change the total momentum of the system.
Answer:
density of water is much greater than density of air
Explanation:
when body is in fluid it carries weight which is always equal to upthrust
upthrust is given as
upthrust= density of fluid ×strength of gravitational field g × volume of body in fluid
as volume of ship and aeroplane is same and strength of gravitational field or acceleration due to gravity is same hence upthrust depens upon density of fluid .
density of air is about 1.2 kg/m^3 and density of water is 1000kg/m^3 hence ship carries more load