This is due in 1 hour HELP PLZ! ill give brainliest! (-= #1.How much work is performed by a student pulling a sled using 175 N of force over a distance of 200 meters?

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#2.
A grocer carefully lifts a 100 N crate of apples a distance of 1.5 m to a shelf in 2.5 seconds. What is his power output? (Hint: You must calculate work before you can solve for power.)

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#3.
A force of 10,000 N is applied to a wall that does not move. How much work is performed?

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#4.How much work is done in order to cook a bag of popcorn in a 1000 watt microwave oven for 4.0 minutes? (tip: don't forget to convert minutes to seconds)

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#5.What is the power of an electric toothbrush if it can do 750 joules of work in 75 seconds?

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.