Conclusion:
The total net force acting on the objects is 16 N, directed towards the right.
Clarification:
It is stated that,
The force exerted by the dog, (to the right)
The force exerted by Simone, (backward)
Here, assume the backward direction is negative and the right direction is positive.
The net force will move in the direction where the larger force is present. The net force can be calculated as:
F = 16 N
Thus, the net force amounts to 16 N, acting towards the right.
Answer:
The pen requires 7.2 mJ of energy to extend.
Explanation:
Provided:
Length = 1.8 cm
Spring constant = 300 N/m
Initial compression = 1.0 mm
Additional compression = 6.0 mm
Total compression = 1.0 + 6.0 = 7.0 mm
We need to determine the energy needed
This energy is equivalent to the variation in spring potential energy
Substitute the values into the formula
Therefore, a total of 7.2 mJ is needed to extend the pen.
Answer:
The coefficient of kinetic friction is found to be 0.432.
Explanation:
Comprehensive steps and derivations with necessary substitutions are detailed in the attached document.
Answer:
When ice is subjected to heat, it melts; however, the temperature remains constant at 0◦ C.
Explanation:
Solution
The heat supplied by the heater is solely utilized for the melting of the ice, thus maintaining the temperature at 0◦ C.
Once all the ice has liquefied, the temperature of the resulting water will start to rise over time.
Note: please see the attached document with solutions featuring diagrams related to this explanation
Response:
83.1946504051 m
Rationale:
u = Starting velocity =
s = Distance traveled =
= Incline =
Friction coefficient
The calculated stopping distance is 83.1946504051 m