Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 19

**physical**

I have no idea what does this have to do with physics but hope you can explain... A passenger on a bus moving east sees a man standing on a curb. From the passenger's perspective, the man appears to be... a)stand still. b) move west at a speed that is less than the bus'...

**Physics kinetic energy**

Okay the equation for kinetic energy is = 1/2mv^2 so how would i figure this out?? If a semi-truck decreases its speed from 10 m/s to 5 m/s, its new Kinetic Energy is: a)4 times its old Kinetic Energy b)2 times its old Kinetic Energy c)1/2 its old Kinetic Energy d)1/4 its old ...

**Physics acceleration**

Whats the equation?? I haven't done this is a while. Don't show me the answer i want to figure it out cus thats just how i roll thanks! A car accelerates uniformly from 10 m/s to 20 m/s in 4.2 seconds. What is the magnitude of its acceleration? Do i times everything to...

**Physics**

Thanks!

**Physics**

Which of the following is not a unit of power? a)hp b)J c)W d)J/s I answered d. J/s because its measuring speed and not power. I don't know if its correct or not.

**Physics **

so its 10*9.8*25? It that right?

**Physics **

thanks yu:))))))))))))))))))))))))))

**Physics **

Help how to find work If a worker pulls a 10kg bucket up a 25 m well, how much work has he or she done?

**Algebra**

What is the GCF of -26x5 + 4x3 + 2x2? how do i figure this out step by step please:)

**Algebra help**

i don't know how?(:<

**Algebra help**

Solve by completing the square x2 - 2x - 5 = 0. Help please a)1 plus or minus√6 b)-1 plus or minus√6 c)-3 plus or minus 2√6 d)3 plus or minus 2√6

**Linear equations i think**

If y = 4x + 14, what is the value of y ÷ -4? choices a) x+7/2 b) -x - 14 c) -x + 14 d) none of these

**Algebra story problem**

I hate story problems they r a nightmare. One poll reported that 48% of city residents were against building a new stadium. The polling service stated that the poll was accurate to within 3%. What is the minimum percent of city residents that oppose the stadium? Here are the c...

**Physics question bout falling**

Objects that are falling toward Earth in free fall move a)faster and faster. b)slower and slower. c)at a constant velocity. d)slower then faster.

**Physics 1**

d = v^2/(2a) d = 9.6^2/(2(9.81)) d = 4.7 m haha i answered it myself

**Physics 1**

A rock is thrown straight upward with an initial velocity of 9.6 m/s in a location where the acceleration due to gravity has a magnitude of 9.81 m/s2. To what height does it rise? Help meh please.

**Physics 1**

Thank you:)

**Physics 1**

There are six books in a stack, and each book weighs 5 N. The coefficient of static friction between the books is 0.2. With what horizontal force must one push to start sliding the top five books off the bottom one? Help how do i do this????? a)1 N b)5 N c)3 N d)7 N

**high school**

How does a scientist reduce the frequency of human error and minimize a lack of accuracy? a.Take repeated measurements. b.Use the same method of measurement. c.Maintain instruments in good working order. d.all of the above

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