We are given a box that slides up a ramp. To determine the force of friction we will use the following relationship:
Where.
To determine the Normal force we will add the forces in the direction perpendicular to the ramp, we will call this direction the y-direction as shown in the following diagram:
In the diagram we have:
Adding the forces in the y-direction we get:
Since there is no movement in the y-direction the sum of forces must be equal to zero:
Now we solve for the normal force:
To determine the y-component of the weight we will use the trigonometric function cosine:
Now we multiply both sides by "mg":
Now we substitute this value in the expression for the normal force:
Now we substitute this in the expression for the friction force:
Now we substitute the given values:
Solving the operations:
Therefore, the force of friction is 15.01 Newtons.
Right answer is option b that is the inner planet may havebeen larger and more gaseous.
Answer:
The largest equivalent resistance yu can build using these three resistors is a Serie Resistance with the value of R= 16.74 Ω
Explanation:
Adding Resistances in serie is the way to build de largest equivalent value possible.
Rt= R1+R2+R3
Rt= 6.32 + 8.13 + 2.29
Rt= 16.74Ω
<h2>Word from the list best fits definition - Option C</h2>
Convection best fits the definition transfer of heat through flowing material. This is because the logic is that it is the heat transference due to the mass transportation of particles within liquids. Example gases and liquids that includes melted ore.
It undergoes by advection, diffusion or both. Convection happens when molecules which have very heat energy in a liquid or gas transit and hold the place of molecules which have less energy of heat. Heat energy is shifted from hot areas to cooler areas by the phenomena of convection. The thick cold liquid drops into the warm regions.