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?

Question1=2584Joules

Question2=3.9 approximately

Question3=64.1ohms approximately

Question4=115.866watts

Explanation:

Question1:

Weight=136N

Distance=19m

Work=weight x distance

Work=136 x 19

Work=2584J

Question2:

Load=32N

Effort=8.3N

Mechanical advantage=load ➗ effort

Mechanical advantage=32 ➗ 8.3

Mechanical advantage=3.9 approximately

Question3:

Voltage=150volts

Current=2.34amps

Resistance=voltage ➗ current

Resistance=150 ➗ 2.34

Resistance=64.1ohms approximately

Question4:

Voltage=12.3v

Current=9.42 amps

Power= current x voltage

Power=9.42 x 12.3

Power=115.866 watts

i wanna say it’s between b and d, leaning more towards b.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards