Some Science Help, Please? A question in my textbook asks the following question: [b]An object is placed 8.0cm in front of a convex mirror that has a radius of curvature of 8.0cm. What is the magnification of this object?[/b] Would the focal point/length in this case be 4.0cm? And the answer I get is -1, but the correct answer is [b]0.33[/b]. I have absolutely no idea how to get this answer. I would really appreciate some help here, thank you. To refresh people's minds, to get magnification: m = hi/ho = -di/do EDIT: I still don't know how to solve it, but thank you to the supporters.
Does anyone know where to watch the Olympics online?Canada I'm from Canada, and the coverage here of the most important sport, basketball, is barely even being televised since this is country loves hockey even though there isn't hockey in these games. But I want to watch the replay for [b]Men's Basketball: Team USA vs Tunisia[/b], does anyone know a site that where I can watch it? I tried the NBC Olympics website already but it's only for people in the United States, which is awful.
High School Science Homework Help Please I've got two questions about temperature, and I can't solve them no matter how much I try. So, I would really appreciate it if someone would kindly help me out here, thanks. Anyway, here are the two questions: 1.[b]What is the final temperature of a 0.200kg clear liquid(c=3.47x10^3 J/kg*°C) at an original temperature of 20.0°C when it gains 2.50x10^4J of heat?[/b] 2.[b]A student did an experiment to determine the specific heat capacity of an unknown metal. She heated 0.352 kg of the metal to 215°C and quickly placed it in an insulated container (negligible specific heat capacity) that contained 0.265 kg of water at a temperature of 26.0°C. If the final temperature of the water is 33.0°
I need help for an easy Physics Question I know everyone will think I'm dumb because I can't even answer this simple Physics Question, but can I still get some help as to how to answer it? Please, I would really appreciate it. Here is the question: [b]If you drop a coin from a height of 9.5m, how fast will it be traveling when it reaches the ground?[/b] Somehow on the answer sheet it says 13.7m/s, but I don't even know how to get this answer. Shouldn't you have to multiply gravity by the height to get the velocity? That equals -93.1m/s, but that can't be the right answer.
Physics 11 Homework Need Help Again Please I keep getting the wrong answer, so I'll leave it to you guys to figure it out. The question is: [b]An object is pulled along a horizontal frictionless surface with a steady horizontal force of 12.0N. If the object accelerates from rest to a velocity of 4.0m/s while moving 5.0m, what is the mass of the object?[/b] I keep getting 3.75kg which is wrong because the real answer is [b]7.5kg[/b]. I need to know how you guys got the answer I would really appreciate it, thanks.
Physics 11 Help Alrighty, this question is basically impossible to answer but here goes. An object is thrown horizontally at a velocity of 18.0m/s from the top of a cliff. If the object hit the ground 100.0m from the base of the cliff, how high is the cliff? -I would appreciate it if you showed me how to get the answer which is [b]151m[/b].
Quick Math HomeWork Help Please I'm stuck on this uber-hard as a rock question and I need help. I need to solve for x on this equation: bx=c+ax. Someone want to answer this please? Gracias.
Can someone provide an up-to-date Hero Skill Build Please? I really need a new nice guide because I'm going to start a Hero, any help would be really appreciated.
Can someone provide an up-to-date Hero Skill Build Please? I really need a new nice guide because I'm going to start a Hero, any help would be really appreciated.
Quick Math Homework Help Please Hey guys, is 0=2x-5y-30 the same as 2x-5y-30=0? Thanks for your time.
Is Wi-Fi free? Is Wi-Fi free?
Thief and Pirate ReOrganization I don't know if other people have posted this link up yet but here is one to some pictures of the new skills for their revamp.
Re-Installing Adobe Flash Player after every reboot Recently, I realized that I had to keep installing Flash for every time I restart my laptop. This never happened to me before and I really need help because I hate having to go to YouTube and realize that I have to install Flash(after restarting of course). What should I do? Someone please help, I've checked online but their answers aren't that helpful. </3 :~( o.o NOTE: I've already tried uninstalling and installing Flash, it doesn't work, or do I have to delete all of my flash stuff? I don't know. Oh yeah, this all actually happened after I downloaded and installed DC Universe Online. By the way if you need any information on my laptop here it is: -Windows 7 -64-bit -I use Firefox as
Re-Installing Adobe Flash Player after every reboot Recently, I realized that I had to keep installing Flash for every time I restart my laptop. This never happened to me before and I really need help because I hate having to go to YouTube and realize that I have to install Flash(after restarting of course). What should I do? Someone please help, I've checked online but their answers aren't that helpful. </3 :~( o.o NOTE: I've already tried uninstalling and installing Flash, it doesn't work, or do I have to delete all of my flash stuff? I don't know. Oh yeah, this all actually happened after I downloaded and installed DC Universe Online. By the way if you need any information on my laptop here it is: -Windows 7 -64-bit -I use Firefox as
Whats your favourite song Here's mine:
Question about Maple Weapons I haven't played maple in a while and im wondering how to get the coins to get the weapons from Inkwell, do you have to convert the maple leaves into coins or something? if so how many leaves for one coin?