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The maximum static force that can be applied is equal to the normal force*the frictional force. the normal force on the box is equal to mg since the floor is flat using 9.81m/s^2 for gravity 12kg*9.81m/s^2 = 118N multiplying the normal force by the frictional force you get a 118*.42= 49.6N so overcome the force of static friction on the box a minimum of 49.6N would need to be applied.
You finna have to pay me lol what it look like though and i’ll see if it’s worth it make some
Answer:
n. Abbr. BMR. The rate at which energy is used by an organism at complete rest, measured in humans by the heat given off per unit time, and expressed as the calories released per kilogram of body weight or per square meter of body surface per hour.
Explanation:
Answer:
Explanation:
Previous concepts
The Thermal radiation is one of "3 mechanisms who allows to bodies exchange energy".
The thermal radiation formula is given by:
Where 
If we solve for P we got:
Since we have a baseball ball considered as a sphere the superficial area is given by:
Solution to the problem
And if we replace this into our equation of P we got:
And we can reorder this like that:
We can convert the radius to meters and we got:
Now we can convert the temperature to Kelvin and we got:
the emissivity given
And now we can replace into the formula for P and we got:
