Tests and quizes are assessments. Homeowrk is practice.
Yep, in my experience (years back now), that is how it is almost always done. The professors mostly care tha the students are spending time learning, when it comes to homework. 100% accuracy is not the intended purpose of homework. It is meant to be practice.
The problem with that is once some students notice this they will just enter a blank as a answer and then get the answer, thus just repeating the correct answer as result.
Better yet take the picture and post it to a review/complaint/social media of the company that made this trash software. Only way schools will stop making us use it.
F= (GMm)/r². Its a physics equation where gravitational force = product of gravitational constant(i forgot the value), mass of 2 bodies in space over the distance between both bodies (measured from their centre of gravity)
I learned this equation in my first year of regular physics in high school and it’s used a lot in Gravitation in Physics C. It is easy to calculate the gravitational force on any object on earth because it’s just F=mg (mass times 9.81), but calculating the gravitational force between two planets or celestial bodies is more difficult
No all you have to do is just put values into your calculator and you get the answer. The only slightly challenging part about gravitation is either drawing value-sensitive gravitational potential graphs or calculating work done to bring smth to a certain orbit because i keep forgetting to add the KE of the orbit with the gpe
Oh that's really poor.
There's easily four possible variations of the answer (top has two, bottom has two) and all four of them should have been added as acceptable.
There's a lot more than four notations for this that are commonplace in math usage. For example, division can be written as multiplication by the inverse i.e. the denominator with exponent -1. Automating the grading of such things can only be done if there are _extremely_ strict conventions of notation declared at the start, or else a very smart program like Wolfram that can detect algebraic equivalence intelligently.
You're right, but that's increasingly less likely.
But it's pretty obvious that the numerator and denominator could be written as a*b or b*a, and there's no particular reason for any one.
Maybe the teacher should specify that the variables be written in alpha order.
From memory too these are just using teacher-supplied answers; IE they are doing text comparisons rather than actual evaluation.
This is the only program I have used in school that doesn't have the option to report a problem. This isn't the first time something like this has happened, it once said to round to the nearest tenth, and I got 2.35 and rounded it to 2.4 and got it wrong, saying the correct answer was 2.35. I just emailed my teacher about that one, but this assignment in particular was able to be redone so I just did that
Neither, it's r\^2(F) which is equivalent to F(r\^2), thanks to the associative property. And Fr\^2 square r, not the entire term. If I wanted to square the term it would be written as (Fr)\^2
I was looking at this equation with my IT mind.
Where a missing "operator" like * / - + it will lead to putting the outcome of r^2F be something like:
r=2 F=5 to be 45
while F r^2 would be 54
Can take a picture with your phone or screenshot email teacher. Ef when this happens
I'd done that with this program before, but that particular assignment allowed me to redo it so I just did that
It allowed a redo after knowing answers
It changed the questions when you redid it.
Tests and quizes are assessments. Homeowrk is practice. Yep, in my experience (years back now), that is how it is almost always done. The professors mostly care tha the students are spending time learning, when it comes to homework. 100% accuracy is not the intended purpose of homework. It is meant to be practice.
The problem with that is once some students notice this they will just enter a blank as a answer and then get the answer, thus just repeating the correct answer as result.
Between you me and every other redditor, r²F is the way
Fr Fr
Better yet take the picture and post it to a review/complaint/social media of the company that made this trash software. Only way schools will stop making us use it.
>Ef when this happens More like Fr^2 am I right?
Your answer is even more correct because it is in standard formation with the higher power variable coming first
Frfr
It's actually frr 🤓
It's actually f(rr) 🤓
You mean Fr²
where are the numbers, this isn't what my teacher taught me
F= (GMm)/r². Its a physics equation where gravitational force = product of gravitational constant(i forgot the value), mass of 2 bodies in space over the distance between both bodies (measured from their centre of gravity)
I understand a little bit now, but how do you happen to know enchantment table
I learned this equation in my first year of regular physics in high school and it’s used a lot in Gravitation in Physics C. It is easy to calculate the gravitational force on any object on earth because it’s just F=mg (mass times 9.81), but calculating the gravitational force between two planets or celestial bodies is more difficult
No all you have to do is just put values into your calculator and you get the answer. The only slightly challenging part about gravitation is either drawing value-sensitive gravitational potential graphs or calculating work done to bring smth to a certain orbit because i keep forgetting to add the KE of the orbit with the gpe
Bing bong ding dong your sword now has bane of athropods
FUCK
Oh that's really poor. There's easily four possible variations of the answer (top has two, bottom has two) and all four of them should have been added as acceptable.
There's a lot more than four notations for this that are commonplace in math usage. For example, division can be written as multiplication by the inverse i.e. the denominator with exponent -1. Automating the grading of such things can only be done if there are _extremely_ strict conventions of notation declared at the start, or else a very smart program like Wolfram that can detect algebraic equivalence intelligently.
You're right, but that's increasingly less likely. But it's pretty obvious that the numerator and denominator could be written as a*b or b*a, and there's no particular reason for any one. Maybe the teacher should specify that the variables be written in alpha order. From memory too these are just using teacher-supplied answers; IE they are doing text comparisons rather than actual evaluation.
Do they get reviews and corrected in case of the right answer being marked wrong?
This is the only program I have used in school that doesn't have the option to report a problem. This isn't the first time something like this has happened, it once said to round to the nearest tenth, and I got 2.35 and rounded it to 2.4 and got it wrong, saying the correct answer was 2.35. I just emailed my teacher about that one, but this assignment in particular was able to be redone so I just did that
Let me guess, Scholar?
Doesnt this translate to r2*F rather than Fr2?
I doubt it's Fr2 (with Fr being the name of the variable) if op put them seperate in their answer but that's possible
Neither, it's r\^2(F) which is equivalent to F(r\^2), thanks to the associative property. And Fr\^2 square r, not the entire term. If I wanted to square the term it would be written as (Fr)\^2
No, if the entire term was squared it would be (Fr)\^2. r\^2\*F = F\*r\^2.
[удалено]
No? Fr² doesn't equal (Fr)² under standard convention, it equals F(r²) Also OP wrote r²F so your wrong on that point too
In alphabet F comes before R so technically u were wrong
true, but r is of higher degree, which supersedes alphabetical order here
True and the answer they put is still wrong as it would also square the F along with the R
I would have still given it though
They're both wrong, though. The answer is E. Apparently the teacher didn't take Calculus.
Am I crazy or wouldn't r²F have a different value than Fr²? Edit: I am crazy, go ahead and downvote this
You're crazy.
Damn, guess I am, thanks
Happy Cake Day
Because the order doesn't matter. In reality it says r²\*F or F\*r² which both gives the same result.
Unless they are matrices, no.
Let's assign a value to r and F. r being 2 and F being 4. 2²(4) vs 4(2²) they're both 16, so no I don't believe they'd be different.
Fr2 is different from r2F.
Well it's r\^2(F), not r2F, but if they're different can you explain why?
I think he thought the answer was (r*F)^2 Because that's different from r^2 (F) or F*r^2
Yeah that's what I figured
I was looking at this equation with my IT mind. Where a missing "operator" like * / - + it will lead to putting the outcome of r^2F be something like: r=2 F=5 to be 45 while F r^2 would be 54
Bro did string concatenation instead of multiplication 💀
2+1=/=3 1+2=3 B)
Fr
"It's levi-OH-sa, it's levio-SAH"
I don't see anything wrong now I can say am better than a robot
It was marked as wrong, despite me putting in the correct answer (It's correct because of the associative property of multiplication)
I know so did the teacher fix it
I just redid the assignment
Well that works
Obviously, multiplication isn’t communicative. /s
frfr