The biggest bowl of mashed potatoes ever made weighed 4.56 x 10^4 pounds and

1 answer:

6 0

We have been given that the biggest bowl of mashed potatoes ever made weighed $4.5\times 10^4$ pounds and was created at the Iowo State Fair in 2005. The biggest deep dish pizza ever made was in Chicago in 1998. It weighed a whopping $1.23\times 10^5$ pounds.

To find how much pizza weighs more than bowl of mashed potatoes, we will subtract weight of mashed potatoes from weight of pizza.

$1.23\times 10^5-4.56\times 10^4$

$1.23\times 100000-4.56\times 10000$

$123000-45600=77400$

Now we will convert $77400$ into scientific notation as:

$77400=7.74\times 10^4$

Therefore, the pizza weighs $77400=7.74\times 10^4$ pounds more than the bowl of mashed potatoes.

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A hollow metal sphere has 6 cm inner and 8cm outer radii. The surface charge densities on the exterior surface is +100 nC/m2 and

natulia [17]

Answer:

<h2>Outer Electric Field is 11250 N/C.</h2><h2>Inner Electric Field is -10000 N/C.</h2>

Step-by-step explanation:

First of all, we need to read carefully and analyse the problem. As you can see, is an electrical subject, and it's given surface charge densities and radius.

So, to calculate electric fields, we need to find the proper equation to do so: $E=k\frac{q}{r^{2} }$ ; as you can see, first we need to find the charges.

We can find all charges using the surface charge densities, because it has the next relation: $p=\frac{q}{A}$ ; which indicates that charge density is the amount of charge per area. But, there's a problem, we don't have areas, so we have to calculate them first with this relation: $S=4\pi r^{2}$ ; which gives us the surface of a sphere.