W=mass X gravity
<span>since the weight is computed </span>
<span>mass=w / gravity </span>
<span>so </span>
<span>mass=1100 / 9.81 </span>
<span>MASS=112.1304KG </span>
<span>PE=MGH </span>
<span>=112.1304 x 9.81 x 2.2 </span>
<span>PE=2420 JOULE </span>
Answer:
Explanation:
The loss of gravitational potential energy must be equal to the gain of kinetic energy since there are no other interactions at play (no friction, etc).
We know that the change of potential energy will be written as , where <em>h</em> is the difference between the different heights.
We know that the change of kinetic energy will be written as , where <em>v</em> is the final velocity and we have assumed it departs from rest.
We then have:
We transform km/h to m/s by multiplying by the conversion factors (which are equal to 1, so don't alter the result):
So for our values we have:
to three significant figures.
<span>Yes, the law of conservation of momentum is satisfied. The total momentum before the collision is 1.5 kg • m/s and the total momentum after the collision is 1.5 kg • m/s. The momentum before and after the collision is the same.</span>
Answer:
- Peat soil
- Loamy soil
- Clay soil
Explanation:
Peat soil is dark, highly decomposed organic matter found in soil.
Loamy soil is a mixture of materials that holds moisture and drains well and also contains coarse grains and allows water to drain quickly.
Clay soil contains medium grains and retains water. Also it contains fine grains and has little space for water.
The gravitational force between them is 3000 gravity’s