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#41 Mango

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Posted 24 August 2015 - 01:43 PM

Our first question :D

WHAT KIND OF TUTORS DONT GIVE ME ANSWERS


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#42 Summer_Equinox

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Posted 24 August 2015 - 01:47 PM

 i can help with vectors, physics, and calculus if any one needs help with those

those are the only subjects i am confident in


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#43 Mango

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Posted 24 August 2015 - 01:52 PM

If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed?

 

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s).

 

How many significant figures are in the following measurements?

(a) 6000000 m/s

significant figures

(b) 5.00 108 m/s

significant figures

© 7.1200°C

significant figures

(d) 0.0128°C

significant figures

(e) 6.3050 J

significant figures

(f) 363 MHz

 

significant figures

 

 

Spoiler

 i can help with vectors, physics, and calculus if any one needs help with those

those are the only subjects i am confident in


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#44 Summer_Equinox

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Posted 24 August 2015 - 01:56 PM (Edited by Summer_Equinox, 24 August 2015 - 02:59 PM.)

 

If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed?

 

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s).

 

How many significant figures are in the following measurements?

(a) 6000000 m/s

significant figures

(b) 5.00 108 m/s

significant figures

© 7.1200°C

significant figures

(d) 0.0128°C

significant figures

(e) 6.3050 J

significant figures

(f) 363 MHz

 

significant figures

 

 

Spoiler

 

How many significant figures are in the following measurements?

(a) 6000000 m/s

              1           significant figures

 

(b) 5.00 108 m/s

              11         significant figures

significant figures

© 7.1200°C

 

               5                 significant figures

(d) 0.0128°C

 

               3                  significant figures

(e) 6.3050 J

                5                    significant figures

(f) 363 MHz

 

                 3                   significant figures

wait hold on

 

If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed?

 

kg*m/s

 

 

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s).

 

4.1X10^10 km

 

 

 

does it make sense, i could explain if you want? dude why are there so many questions on the spoiler O_O

i will do the rest in 10000000 years


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#45 Mango

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Posted 24 August 2015 - 01:59 PM

amy= my life savior


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#46 CherryGoyangi

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Posted 24 August 2015 - 02:32 PM

please find the mean, median, and mode of this data set: 30, 37, 32, 39, 33, 34, 32
don't judge me :._.:

also how do u find mean again? my teacher went through the notes to fast for me to finish writing.

If someone could translate that into french i would have been able to help...

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#47 Summer_Equinox

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Posted 24 August 2015 - 02:58 PM

 

If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed?

 

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s).

 

How many significant figures are in the following measurements?

(a) 6000000 m/s

significant figures

(b) 5.00 108 m/s

significant figures

© 7.1200°C

significant figures

(d) 0.0128°C

significant figures

(e) 6.3050 J

significant figures

(f) 363 MHz

 

significant figures

 

 

Spoiler

 

 

The value of the speed of light is now known to be 2.997 924 58 ✕ 10^8 m/s. Express the speed of light to each of the following levels of precision.
(a) with two significant figures

 

 3.0 x 10^8 m/s

 

(b) with five significant figures

 

       2.9979 x 10^8 m/s

 

© with six significant figures

        2.99792 x 10^8 m/s

How many significant figures are there in the following measurements?

(a) 53.0  0.4 m

 i am confused about this number why are there two decimals ?

 

(b) 6.158 109 s

 13 significant figures

 

© 7.27 106 kg

9 significant figures

 

(d) 0.0066

2 significant figures

 

A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 18.33 m, and the length of each short side is found to be 19.4 m. What is the total distance around the field?

 

perimeter: 75.5 m

 

 

Estimate the number of table-tennis balls that would fit (without being crushed) into a room that is 2 m long, 2 m wide, and 12.0 m high. Assume that the diameter of a ball is 3.8 cm.

 

2.13 x10^6 tennis balls

 

Calculate the circumference and area for the following circles. (Use the following formulas: circumference = 2πr and area = πr2.)

(a) a circle of radius 2.2 cm

 C = cm

 A = cm2

circumference: 14 cm

area: 15 cm^2

 

(b) a circle of radius 6.60 cm 

 C = cm 

 A = cm2

circumference: 41.5 cm

area: 137 cm^2

 

One cubic centimeter (1.0 cm3) of water has a mass of 1.0 10-3 kg at 25°C. Determine the mass of 3.0 m3 of water at 25°C.

 

3.0 x 10^3 kg

 

just kidding


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#48 Mango

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Posted 24 August 2015 - 03:03 PM



just kidding

what is this
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#49 Summer_Equinox

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Posted 24 August 2015 - 03:05 PM (Edited by Summer_Equinox, 24 August 2015 - 03:06 PM.)

If someone could translate that into french i would have been able to help...

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to find the mean

 

add everything together and divide by how many there are

30+ 37+ 32+ 39+ 33+ 34+ 32 =237

237/7 =33.9


what is this

i meant that i did them without taking 1000000 years

was too lazy to do all of them hehe, does it make sense though?


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#50 Mango

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Posted 24 August 2015 - 03:13 PM

to find the mean

add everything together and divide by how many there are
30+ 37+ 32+ 39+ 33+ 34+ 32 =237
237/7 =33.9

i meant that i did them without taking 1000000 years
was too lazy to do all of them hehe, does it make sense though?

yea sure :chu:
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#51 CherryGoyangi

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Posted 24 August 2015 - 03:25 PM

to find the mean

add everything together and divide by how many there are
30+ 37+ 32+ 39+ 33+ 34+ 32 =237
237/7 =33.9

i meant that i did them without taking 1000000 years
was too lazy to do all of them hehe, does it make sense though?

What is a mean? We have totally different names in France...
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#52 Summer_Equinox

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Posted 24 August 2015 - 03:28 PM

What is a mean? We have totally different names in France...

it means to take an average of the numbers given; there mean, median, and mode which are the three different ways to do it

i think though mean is the most accurate

 

what are the names you use in France?


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#53 pimo

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Posted 24 August 2015 - 03:31 PM

What is a mean? We have totally different names in France...

mean= average

idk why we have such a weird word for it though lol


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#54 CherryGoyangi

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Posted 24 August 2015 - 03:36 PM

it means to take an average of the numbers given; there mean, median, and mode which are the three different ways to do it
i think though mean is the most accurate

what are the names you use in France?

Oooooh ok, a mean is "moyenne" and median is "médiane" and mode is "mode" but i can't remember how you calculate the mode...

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#55 wildfire

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Posted 24 August 2015 - 03:36 PM

Oooooh ok, a mean is "moyenne" and median is "médiane" and mode is "mode" but i can't remember how you calculate the mode...

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The mode is just the most repeated number

 

so if the sequence is 3,5,2,5,7,8,5,9 the mode is 5


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#56 CherryGoyangi

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Posted 24 August 2015 - 03:40 PM

The mode is just the most repeated number

so if the sequence is 3,5,2,5,7,8,5,9 the mode is 5

Oh ok thanks

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#57 wildfire

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Posted 24 August 2015 - 04:32 PM

Updated the OP with AP study guides and exam review  :ohla:  :ohbi:


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#58 Athena

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Posted 24 August 2015 - 05:07 PM

The APUSH exam changed so some of those links may not be helpful.

 

Definitely add these:

 

https://secure-media...description.pdf

http://media.college...actice-exam.pdf


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#59 wildfire

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Posted 24 August 2015 - 05:07 PM

The APUSH exam changed so some of those links may not be helpful.

 

Definitely add these:

 

https://secure-media...description.pdf

http://media.college...actice-exam.pdf

thanks, will do


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#60 Aquashakencola

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Posted 24 August 2015 - 05:25 PM

ugh school  :cry:

what grade are you going into?

Grade 10 :chu:


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