The Forum Site - Join the conversation
Forums: Science:
Math

Can you solve this Question?

Reply to Topic
AuthorMessage
Pages: 1 2 · >>
Thranduil On August 31, 2013




QUINCY, Kentucky
#1New Post! May 13, 2009 @ 20:14:34
If a object is moving at speeds of up to 3 times 10 to the seventh meters per second, how many miles per hour would it be moving?

It's from the movie the day the earth stood still, a group of scientists were told that UFO was heading towards earth, the man in charge of the briefing said that it was traveling at the speed mentioned above.
jonnythan On August 02, 2014
Bringer of rad mirth


Deleted



Here and there,
#2New Post! May 13, 2009 @ 20:15:26
Yes.
sugarflyguy On March 15, 2010
Pro-Pho-tographer


Deleted



Leaving TFS today:), United Ki
#3New Post! May 13, 2009 @ 20:15:39
very slowly
magnolia4 On April 01, 2012




,
#4New Post! May 13, 2009 @ 20:22:38
Okay this is probably wrong but, 6710.796 MPH?
magnolia4 On April 01, 2012




,
#5New Post! May 13, 2009 @ 20:24:13
Or it's 60397.2, depending on the wording of the question and where the parenthesis would be.
jonnythan On August 02, 2014
Bringer of rad mirth


Deleted



Here and there,
#6New Post! May 13, 2009 @ 20:24:15
Yeah that's definitely wrong.

Amusingly, Google can do it!
magnolia4 On April 01, 2012




,
#7New Post! May 13, 2009 @ 20:29:13
@jonnythan Said

Yeah that's definitely wrong.

Amusingly, Google can do it!




Duh!!! I read the question but for some reason my brain processed it as 10 to the 3rd power not the 7th!
View Image
boobagins On August 03, 2013
SPICY HOT TAMALES





Astral Weeks, Florida
#8New Post! May 13, 2009 @ 20:31:23
@jonnythan Said

Yeah that's definitely wrong.

Amusingly, Google can do it!



But thats meters per second. He asked for miles per hour.

I believe the answer is 5.17809
jonnythan On August 02, 2014
Bringer of rad mirth


Deleted



Here and there,
#9New Post! May 13, 2009 @ 20:33:29
@boobagins Said

But thats meters per second. He asked for miles per hour.

I believe the answer is 5.17809


A meter is about a yard.

An object moving 25 million yards every second is only going about 5 miles per hour?

No, the answer is just over 67 million mph. As provided by Google and verified by my own math:


3*10^7 m/s * 60 s/min * 60 min/hr * 100 cm/m * (1 in/2.54 cm) * (1 foot/12 in) * (1 mile/5280 feet) = 67108088.76 miles/hr
boobagins On August 03, 2013
SPICY HOT TAMALES





Astral Weeks, Florida
#10New Post! May 13, 2009 @ 20:34:31
I'm not exactly sure if you write the problem as 3(10^7) or (3*10)^7.

If its 3(10^7) then the answer is 5.17809

If its (3*10)^7 then the answer is 3774.82
magnolia4 On April 01, 2012




,
#11New Post! May 13, 2009 @ 20:35:49
Did it again and it's 67108088.761632072 MPH. Verified w/ Google too!
jonnythan On August 02, 2014
Bringer of rad mirth


Deleted



Here and there,
#12New Post! May 13, 2009 @ 20:36:14
"Three times ten to the seventh" means 3 * 10^7, or 3e7.
jonnythan On August 02, 2014
Bringer of rad mirth


Deleted



Here and there,
#13New Post! May 13, 2009 @ 20:37:39
@boobagins Said

I'm not exactly sure if you write the problem as 3(10^7) or (3*10)^7.

If its 3(10^7) then the answer is 5.17809


I'd like to see the math for this.

You're off by seven significant digits.

Basic reality checks are always necessary when you get to the end of a solution.

Ask yourself: "Does it make sense that an object traveling 30,000,000 meters every second is going about 5 miles per hour?"

Clearly it doesn't - 30 million meters is 30 thousand kilometers, which is obviously more than 5 miles. And it's traveling 30 thousand kilometers every second - 3600 times that distance every hour.
boobagins On August 03, 2013
SPICY HOT TAMALES





Astral Weeks, Florida
#14New Post! May 13, 2009 @ 20:42:59
I read it the question wrong...I though it was just up 7 exponents, then doing a simple conversion from meters to miles.

I missed where it said to the seventh METER. Lol
Richard142 On February 15, 2015




Greater London, United Kingdom
#15New Post! May 13, 2009 @ 20:44:53

30000000 meters per second is equal to 67,108,088.76 miles (statute) per hour from https://www.sciencemadesimple.com/conversions.html
Reply to Topic<< Previous Topic | Next Topic >>
Pages: 1 2 · >>

1 browsing (0 members - 1 guest)

Quick Reply
Be Respectful of Others

      
Subscribe to topic prefs

Similar Topics
    Forum Topic Last Post Replies Views
New posts   News & Current Events
Sat Mar 26, 2011 @ 16:22
5 714
New posts   Poetry
Tue May 25, 2010 @ 11:04
0 439
New posts   Movies
Sat May 02, 2009 @ 12:28
10 790
New posts   Movies
Thu Dec 11, 2008 @ 00:24
4 488
New posts   Movies
Fri Nov 28, 2008 @ 06:25
0 314