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zepelin [54]
3 years ago
11

At a recent winter Olympics USA short track speed to skater Apolo Ohno won a gold medal by skating about 12 m/s rounded to the n

earest hundred how many miles per hour is this
Mathematics
1 answer:
anastassius [24]3 years ago
8 0

Answer:

Apolo Ohno skated about 26.84 miles per hour

Step-by-step explanation:

Given:

Apolo Ohno won a gold medal by skating about 12 m/s

We need to find 12 m/s in miles per hour

1 hour consist of 3600 seconds

12 m/h = 12\times3600 =43200\ meter \ per \ hour

1 mile = 1609.344 meter

how many miles Ohno skated = 43200 meter per hour

By using Unitary Method we get

Miles Apolo Ohno Skated =\frac{43200}{1609.344}= 26.84323

Rounding to nearest hundred we get

Apolo Ohno Skated about 26.84 miles per hour

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Anon25 [30]

Answer:

A) 40

B) 20

Step-by-step explanation:

By <em>Length · Width · Height</em>

A)  (5) · (4) · (2) = 40

For part B, the length and width are the same, but the depth (height) of the water is only one foot, so we can replace the height value from the first equation with 1.

B) (5) · (4) · (1) = 20

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3 years ago
Desmond sells two different types of homemade juices.
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The Strawberry mango is more expensive by $0.01 more it being 1.10 every ounce and the tropical punch being least expensive it being $1.09
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Warren is on vacation and needs to arrange transportation. A rental car costs 60 dollars per day plus a one-time cost of 14 doll
Vlad1618 [11]

Answer:

The answer is C(x) = 60x + 14 and the answer to the second one is 7 days.

Step-by-step explanation:

C(x) =60x + 14

434 = 60x + 14

-14                -14

420 = 60x

/60      /60

7 = x

or

x = 7 days

3 0
3 years ago
Read 2 more answers
No links! &amp; help me please
melamori03 [73]

Answer:

150.72 units³

Step-by-step explanation:

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V = pi (3.14) r² h

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6 0
3 years ago
An adult brain is about 140 mm wide and divided into two sections (called "hemispheres" although the brain is not truly spherica
Sedbober [7]

Answer: 3.61×10^5 A

Step-by-step explanation: Since the brain has been modeled as a current carrying loop, we use the formulae for the magnetic field on a current carrying loop to get the current on the hemisphere of the brain.

The formulae is given below as

B = u×Ia²/2(x²+a²)^3/2

Where B = strength of magnetic field on the axis of a circular loop = 4.15T

u = permeability of free space = 1.256×10^-6 mkg/s²A²

I = current on loop =?

a = radius of loop.

Radius of loop is gotten as shown... Radius = diameter /2, but diameter = 65mm hence radius = 32.5mm = 32.5×10^-3 m = 3.25×10^-2m

x = distance of the sensor away from center of loop = 2.10 cm = 0.021m

By substituting the parameters into the formulae, we have that

4.15 = 1.256×10^-6 × I × (3.25×10^-2)²/2{(0.021²) + (3.25×10^-2)²}^3/2

4.15 = 13.2665 × 10^-10 × I/ 2( 0.00149725)^3/2

4.15 = 1.32665 ×10^-9 × I / 2( 0.000058)

4.15 × 2( 0.000058) = 1.32665 ×10^-9 × I

I = 4.15 × 2( 0.000058)/ 1.32665 ×10^-9

I = 4.80×10^-4 / 1.32665 ×10^-9

I = 3.61×10^5 A

3 0
3 years ago
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