Answer:
La longitud del camino recorrido es de 25.9 [m]
Explanation:
Se reemplaza el valor de tiempo en segundos en la ecuación dada de desplazamiento
x=10+20*(3) - 4.9*(3)^2
x= 25.9 [metros]
Here are the answers to the given questions above.
1. The reason why a person might want to wear snowshoes if walking a distance in deep snow is that s<span>nowshoes spread the person’s weight out, snowshoes reduce the amount of pressure on a given spot, and snowshoes keep the person from sinking in the snow. So the answer is all of these.
2. </span><span>The measure of the average kinetic energy of the particles of a substance is the TEMPERATURE.
3. </span>Archimedes’ Principle helps to explain the relationship between <span>buoyancy and density.
4. The one that is </span>equal to the buoyant force of a rock placed in a beaker of water is <span>weight of the displaced fluid.
Hope these answers help.</span>
Answer:
only long-range force that affects all particles is the gravitational force.
Explanation:
In nature there are four fundamental forces: nuclear, weak, gravitational and electrical.
The last two are long-range, that is, the forces are zero for infinite distances, the current gravitational on all the particles and the electric one acts on the charged particles, without the chosen charge it is zero, the forces is also zero.
Consequently the only long-range force that affects all particles is the gravitational force.
The molecules making up object collide with the molecules of the other and some of the kinetic energy from a warmer object is transferred to the cooler one.
Answer:
4.) At room temperature, it changes directly from a solid to a gas a process called sublimation. This expansion causes a rapid temperature drop, and some of the carbon dioxide freezes into solid pellets of dry ice.
5.) Balsa wood combines the two elements necessary to a successful flight: strength and lightness. Balsa wood is also easy to cut and carve with just a good, sharp hobby knife or razor saw, so no need for heavy power tools. Or any lighter wood.
6.) Density is mass/volume. So: D=10.7/5
D=2.17g/cm^3