Answer:
Explanation:
Data given
represent the applied force by the wheel
represent the radius for the wheel
represent the rotational speed given
represent the kinetic friction coeffcient given.
Solution to the problem
For this case we need to find first the spped with the usual units in m/s like this:
And we can replace the values given and we got:
Now we can calculate the friction force, for this case we assume that the normal force is the force exerted by the wheel and from the definition:
Now we can calculate the power assuming that all the energy is converted to kinetic energy from the motor with the following formula:
And we can replace with the values that we found:
And that would be the energytransferred from the motor driving the wheel to the thermal energy of the wheel and tool and to the kinetic energy of the material thrown from the tool.
Answer:
The gravitational acceleration experienced was of 1.63m/s².
Explanation:
We know, from the kinematics equations of vertical motion that:
Solving for g, we get:
Since the final speed is zero, because Neil Armstrong came to a stop in his maximum height, we obtain:
Finally, we plug in the given values of the initial speed and the maximum height:
This means that the gravitational acceleration experienced by Neil Armstrong in the moon, was of 1.63m/s².
Answer:<em> tried my best to answer your ?s:</em>
<em>B</em>
<em>A</em>
<em>B</em>
<em>D</em>
<em>A</em>
<em>A</em>
<em>B?</em>
<em>Hope this helps!!</em>
Answer:
attribute is defined as a quality or characteristic of a person, place, or thing
Explanation:
