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Nady [450]
3 years ago
15

Physical science help

Physics
2 answers:
mojhsa [17]3 years ago
4 0
The answer is pulley
VMariaS [17]3 years ago
3 0

The flagpole used a PULLEY at the top.

The cutting edge of the axe is a WEDGE.

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The driver of a car traveling 110 km/h slams on the brakes so that the car undergoes a constant acceleration, skidding to a comp
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Answer: -6.80\ ms^{-2}

Explanation:

We know that the formula for acceleration is given by:

a=\dfrac{v-u}{t} , where v = Final velocity

u= Initial velocity

Given :  The driver of a car traveling 110 km/h slams on the brakes so that the car undergoes a constant acceleration.

i.e. u=   110 km/h =\dfrac{110\times1000}{3600}\approx35.6\ m/s  [∵  1 km= 100 meters and 1 hour = 3600 seconds]

v=  0  m/s ( At brake , final velocity becomes 0)

t=4.5 seconds  

Substitute all the values in the formula , we get

a=\dfrac{0-30.56}{4.5}\approx-6.80\ ms^{-2}

Hence, the average acceleration of the car during braking is -6.80\ ms^{-2}.

5 0
3 years ago
A box is being pulled by two ropes. Eduardo pulls to the left with a force of 500 N, and Clara pulls to the right with a force o
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The box is moving in the direction of Eduardo with a force of 300N since he is pulling 300N stronger than Clara.
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2) As a freshman in college, you enter a classroom hall believing it is Physics 101 and sit down. The professor says, "During th
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No because you don’t learn about synthetic inventions yet in your first year
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Understanding the benefits of an activity can __________.
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Answer:A.

Increase your motivation to continue doing it

Explanation:

benefits help you

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What causes the particles within the nucleus of an atom to bond together? Question 12 options: electromagnetism gravity weak nuc
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Answer:

Strong nuclear force

Explanation:

The particles in the atom's nucleus bond together because there is a strong nuclear force between the protons and neutrons that attracts them to each other and binds together the nucleus.

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