alfie
Name:
Andrew
School:
University Federico II
About:
Hey everyone, I am from Italy, currently studying computer engineering, lots of math and codes floating around my head :P.
I think the purpose of this website is to give hints, so that the user can understand the solution, not just throw it there, answering. If it's so, the user won't learn much, and that is just useless.
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Questions Answered
michaelJordan:
Group Title
Evaluate the expression below when g = -6.
-3g-2-(-4g+10)=
updated 2 years ago
7 replies
1 Medal
Mathematics
maheshmeghwal9:
Group Title
How can we test the continuity of the function below :--
updated 2 years ago
21 replies
1 Medal
Mathematics
alfie:
Group Title
Sequence of functions and uniform convergence.. I am having some troubles with this topic, so here it is...
\[f_{n}(x)\] = \[\large \log(1+…
updated 2 years ago
16 replies
2 Medals
Mathematics
dldinatale:
Group Title
How long would it take a penny to hit the ground when droped from a roof 192 ft high
updated 2 years ago
4 replies
1 Medal
Mathematics
laurenr93:
Group Title
d/dx sin^2(x)......?
OR d/dx (sinx)^2
Same thing
updated 2 years ago
3 replies
No Medals Yet
Mathematics
decripter37:
Group Title
Someone can show me the dimonstration of the Rolle's theorem about the existence of a tangent, with derivative 0, to the f(x) function in a …
updated 2 years ago
3 replies
2 Medals
Mathematics
isuru:
Group Title
Suggest me a book to learn fundamental physics AP level(USA) or Adavanced Level(UK)? It is great if that book has lots of sample problems.
updated 2 years ago
5 replies
4 Medals
Mathematics
ooosam:
Group Title
A 1.0-kg block and a 2.0-kg block are pressed together on a horizontal frictionless surface with a compressed very light spring between them…
updated 2 years ago
5 replies
2 Medals
Mathematics
joyce153:
Group Title
See attachment.
updated 2 years ago
8 replies
2 Medals
Mathematics
coral1998:
Group Title
Would you drink a monster, gatoraid, both, or neither this is for algebra
updated 2 years ago
2 replies
No Medals Yet
Mathematics
MicaelaS21:
Group Title
Simplify the expression: ln10-ln(x+6)=5 I know that the answer is: {10-6e^5/e^5} But I don't know how to work out the problem.
updated 2 years ago
5 replies
2 Medals
Mathematics
didi8917:
Group Title
parlate italiano?
updated 2 years ago
2 replies
No Medals Yet
Mathematics
ooosam:
Group Title
A crane lifts a 425 kg steel beam vertically a distance of 66 m. How much work does the crane do on the beam if the beam accelerates upward …
updated 2 years ago
4 replies
1 Medal
Mathematics
elica85:
Group Title
25kg box slides 4m down the 30 degree ramp. spring constant is 1000N/m. coefficient of kinetic friction is .25. what is the max compression …
updated 2 years ago
22 replies
2 Medals
Mathematics
Pirate:
Group Title
Why do we wanna find points of discontinuity？
updated 2 years ago
2 replies
3 Medals
Mathematics
coolcat93:
Group Title
A 2.0 kg box that is sliding on a frictionless surface with a speed of 13 m/s approaches a horizontal spring. (See Fig. 5.18.) The spring ha…
updated 2 years ago
2 replies
No Medals Yet
Mathematics
dessie91:
Group Title
√3 · √21
= 3√7 ??
updated 2 years ago
2 replies
2 Medals
Mathematics
Kuroks:
Group Title
A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s.
A.Find the change in momentum of the bal…
updated 2 years ago
6 replies
2 Medals
Mathematics
greenday101:
Group Title
Suppose that a 1100 kg car is traveling at 24 m/s (≈52.8 mph).
Its brakes can apply a maximum force of 5000 N while skidding to a stop.
(a) …
updated 2 years ago
2 replies
No Medals Yet
Mathematics
greenday101:
Group Title
A 720 kg race car starts from rest on the race track and travels 39 m in 2.9 seconds.
The car is uniformly accelerated during the entire tim…
updated 2 years ago
2 replies
No Medals Yet
Mathematics
greenday101:
Group Title
The diagram below shows an Atwood's Machine: Mass A (5 kg) and Mass B (1.5 kg) are attached to a frictionless, massless pulley.
Hint: These …
updated 2 years ago
2 replies
No Medals Yet
Mathematics
Nikkasaur:
Group Title
whats 2!
updated 2 years ago
32 replies
2 Medals
Mathematics
Kuroks:
Group Title
A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s.
A.Find the change in momentum of the bal…
updated 2 years ago
2 replies
1 Medal
Mathematics
janiefosho909:
Group Title
Which of the following represents the area of a rectangle whose length is 3x - 7 and whose length is
x + 2? (4 points)
Answer…
updated 2 years ago
3 replies
No Medals Yet
Mathematics
sonofa_nh:
Group Title
a 1.00 kg block compresses a spring for which K1 = 100 N/m by 20.0 cm and is then released to move across a horizontal, frictionless table, …
updated 2 years ago
6 replies
1 Medal
Mathematics
jonathan1992:
Group Title
how do i change my pic
updated 2 years ago
2 replies
No Medals Yet
Mathematics
alfie:
Group Title
What's wrong with my integration?
I've used integration by parts:…
updated 2 years ago
11 replies
1 Medal
Mathematics
Lindsayb12:
Group Title
Solve, using the substitution method.
y = 2x + 6…
updated 2 years ago
5 replies
1 Medal
Mathematics
Lindsayb12:
Group Title
Solve, using the substitution method.
3x + 2y = 11…
updated 2 years ago
4 replies
1 Medal
Mathematics
BABS:
Group Title
dont get this one help please 7x/3 + 2 = -15
updated 2 years ago
7 replies
1 Medal
Mathematics
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