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Airida [17]
3 years ago
13

Hogden is conducting an experiment to determine how much force it takes for a nail to puncture a tire, causing a flat. He uses f

ive identical nails and tests them on five identical tires filled with equal amounts of air. He hits each nail one time, applying a different force each time. His results are recorded below. Trial Force (lbs) Result nail 1 15.0 no flat nail 2 30.0 no flat nail 3 45.0 no flat nail 4 60.0 flat nail 5 75.0 flat What can Hogden conclude from his results? A. It takes exactly 60.0 pounds of force on the nail to cause a flat. B. It takes exactly 45.0 pounds of force on the nail to cause a flat. C. It takes between 60.0 and 75.0 pounds of force on the nail to cause a flat. D. It takes between 45.0 and 60.0 pounds of force on the nail to cause a flat.
Engineering
2 answers:
SashulF [63]3 years ago
8 0

Answer:

B

Explanation:

soldi70 [24.7K]3 years ago
7 0

Answer:

D. It takes between 45.0 and 60.0 pounds of force on the nail to cause a flat.

Explanation:

Did the Study Island.

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3 years ago
A beam has a rectangular cross section that is 5 inches wide and 1.5 inches tall. The supports are 60 inches apart and with a 12
nydimaria [60]

Answer:

The value of Modulus of elasticity E = 85.33 × 10^{6} \frac{lbm}{in^{2} }

Beam deflection is = 0.15 in

Explanation:

Given data

width = 5 in

Length = 60 in

Mass of the person = 125 lb

Load = 125 × 32 = 4000\frac{ft lbm}{s^{2} }

We know that moment of inertia is given as

I = \frac{bt^{3} }{12}

I = \frac{5 (1.5^{3} )}{12}

I = 1.40625 in^{4}

Deflection = 0.15 in

We know that deflection of the beam in this case is given as

Δ = \frac{PL^{3} }{48EI}

0.15 = \frac{4000(60)^{3} }{48 E (1.40625)}

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This is the value of Modulus of elasticity.

Beam deflection is = 0.15 in

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3 years ago
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otez555 [7]

Answer:

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Explanation:

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Is it possible to have a heat engine with efficiency of 100%?
Alex17521 [72]

Answer:

No

Explanation:

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4. Which 2D shape on the left would be used to make the 3D shape on the right? (1 pt.)
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