Answer:
Your little sister (mass 25.0 ) is sitting in her little red wagon (mass 8.50 at rest. You begin pulling her forward and continue accelerating her with a constant force for 2.35 at the end of which time she's moving at a speed of 1.80 .
(a) Calculate the impulse you imparted to the wagon and its passenger. (b) With what force did you pull on the wagon?
Answer: The total resistance increases, so the current in the circuit decreases.
Answer:
Our bodies digest the food that we eat, and mix it with the fluids (acids and enzymes) in the stomach. Once the stomach had digested the food the carbohydrate (sugars and starches) in the food gets broken down into glucose, another type of sugar.
The work done on the boxes and the energy spent is 700J while the power required to lift 4 boxes per minute is 2.8kW
This work done on an object is the force required to move that object from point A to point B.
Data Given;
- Weight (mg) = 200N
- Distance (s) = 3.5m
<h3>Work Done</h3>
This is the work done to move the boxes from point A to point B.

The work done to move the object is 700J
<h3>Energy</h3>
This is used to calculated the energy used to carry the work done and the formula is given as

The energy transferred when he lifts one box is 700J
<h3>Power</h3>
Power is the rate at which energy is used with respect to time

The energy required to lift 4 boxes in one minutes is

Now we can calculate the power used

The power required to move four boxes in 1 minutes is 2.8kW
From the calculations above, the following was gotten
- work done = 700J
- Energy = 700J
- Power = 2800W or 2.8kW
Learn more on work done, energy and power here;
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