Solve problem. Be sure to show your work and give a final answer with units rounded to the correct number of significant figures.
1) A wagon with a weight of 136 N is moved 19 m from its original location. How much work was done?
2) A simple machine requires 8.3 N of force to obtain an output force of 32 N. What is the mechanical advantage of the machine?
3) If an electrical appliance has 150.0 V applied causing a current of 2.34 amps, what is the resistance of the appliance?
4) What is the electrical power generated from a voltage of 12.3 V if the current is 9.42 amps?
uggh , what was the point of you even commenting ? You could've easily moved on to the next question instead of complaining about mines.
He is not complaining, he is attempting to help you learn physics. We are teachers of physics, not doers for students.
1) To solve this problem, we can use the formula:
Work = Force × Distance
Given:
Force = 136 N
Distance = 19 m
Plugging in the values:
Work = 136 N × 19 m
Work = 2584 N⋅m
Therefore, the work done is 2584 N⋅m.
2) The mechanical advantage of a machine is calculated by dividing the output force by the input force. So the formula is:
Mechanical Advantage = Output Force / Input Force
Given:
Input Force = 8.3 N
Output Force = 32 N
Plugging in the values:
Mechanical Advantage = 32 N / 8.3 N
Mechanical Advantage ≈ 3.8554217
Rounding to the correct number of significant figures, the mechanical advantage is approximately 3.86 (unitless).
3) The formula to calculate resistance is:
Resistance = Voltage / Current
Given:
Voltage = 150.0 V
Current = 2.34 A
Plugging in the values:
Resistance = 150.0 V / 2.34 A
Resistance ≈ 64.1034483 Ω
Rounding to the correct number of significant figures, the resistance is approximately 64.1 Ω.
4) The formula to calculate electrical power is:
Power = Voltage × Current
Given:
Voltage = 12.3 V
Current = 9.42 A
Plugging in the values:
Power = 12.3 V × 9.42 A
Power ≈ 115.686 W
Rounding to the correct number of significant figures, the electrical power generated is approximately 116 W.
these are very basic questions. If you really have no idea on any of them, you have some studying to do.
And don't post your instructions. They are for you to follow, not to impose on us. Just post the questions. We assume you want the problems solved. It's up to you to provide the detail necessary to satisfy the instructor.
So, since I'm feeling charitable after my rant, I'll get you started]
#1. work = force * distance
for the others, go back to your text, and go over the definitions of the concepts discussed.