10 POINTS!!! Determine the pressure of your book in pascals (Pa). Show your work! (the pressure of the book in psi is 0.03 psi) Also the weight of the book is 3 lbsHInt: 1 Pa = 1 N/m^2 Weight (force) = ma 1 kg = 2.2 lbs 1 inch = 2.54 cm 1m = 100 cm

Answers

Answer 1

Answer:
You've listed a lot of data here, in both metric and customary units,
and I'm not even sure it's all needed. Let me try and boil it down:

Pressure on a surface =
   (total force on a surface) divided by (area of the surface).

The answer to the question is the pressure expressed in pascals.
There's actually enough information here to answer the question
in 2 different ways. We could ...

-- simply convert (0.03 pound per inch²) to pascals, or
-- go through the whole calculation of force, area, and then their quotient.

To me, converting 0.03 psi to Pa looks easier.

-- 1 pascal = 1 newton / 1 meter²

-- On Earth, 1 kilogram of mass weighs 9.8 Newtons and 2.2 pounds.
From this, we can calculate that

2.2 pounds of force = 9.8 newtons of force.

   1 pound = 4.45 newtons

(0.03 pound/inch²) x (4.45 newton/pound) x (1inch/2.54cm)² x (100cm/1m)² =

(0.03 x 4.45 x 1² x 100²) / (2.54² x 1²)    newton/meter² = 206.9 Pa .

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1. You are driving south on the 405. You are in traffic so your speed is 35 miles per hour,(35 mi/hr). Calculate your speed in m/sec. Assume that there 1.609 meters in every mile.

2. The Moon takes 27.25 days to make one revolution around the Earth. Calculate how
many seconds it takes for the Moon to make one revolution around the Earth.

Answers

Answer:

1. 15.64 m/s

2. 2,354,400 seconds

Explanation:

1. 1mile is equivalent to 1609metres and 1hour is equivalent to 3600sec.

35mph = (35×1609)/3600

= 56315/3600

= 15.64 m/s

2. Note that 1 day ===> 24hrs

60min ==> 1hr

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A basketball has a mass of 1 kg and is traveling 15 m/s. How fast would a 5 kg bowling ball have to travel to have the same momentum?A) 3 m/s

B) 15 m/s

C) 1 m/s

D) 5 m/s

Answers

A) 3 m/s. Hope this helps.

Answer:

A 3m/s

Explanation:

Took the test (k12)

Dark cooler areas on the sun's surface are called what? (Prominences, solar flares, coronas, or sunspot)

Answers

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The answer in sunspot.

What is an example of frequency

Answers

'Frequency' is a word that often confuses some people ... for no good reason.
It just means "frequent-ness" or "often-ness" ... how often something happens.

The SI unit of frequency is the Hertz (Hz). Hz means 'per second'.
So " 13 Hz " means 13 per second.

Here are examples of frequency:

-- 780 kilohertz (on your AM radio dial)
-- 98.7 Megahertz (on your FM dial)
-- 5.8 Gigahertz
-- twice a day
-- three per week
-- every 6 months

For example 75 Hertz means that there are 75 wave tops per second in for example a radio signal.

What is the formula of iron(III) oxide?

Answers

Answer:

Fe2O3

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When polarizing an object, what happens to the charges in the object?A. They swirl about like bees in a hive.
B. They separate, with positive charges on one side and negative
charges on the other.
C. The protons drain off, leaving the object negatively charged.
D. They repel each other and spread out all around the outer surface.

Answers

Answer:

B. They separate, with positive charges on one side and negative

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Explanation:

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