05/01/25

What is Algebra, exactly? What is it for, why do we want to learn it?
What's the point of being able to do algebra? What can I do with it?
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01/04/25

THE YANG-MILLS MASS GAP PROBLEM
There are a lot of answers on the Yang-Mills problem,is the mass gap problem still open, and what is wrong with these answers:1)... more
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12/06/24

while sitting in a moving bus you throw an apple up into the air the apple will land back in your hand?
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10/22/24

How do I identify objects in a binary star system?
The question is related to two objects (1 and 2) in a binary system ( with circular orbits). The objects are a pulsar and a white dwarf (it's not specified which object is which). We are given the... more
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10/07/24

Physics problem about nonconservative forces
A 20.0-kg child descends a slide 2.30 m high and reaches the bottom with a speed of 1.45 m/s. How much thermal energy due to friction was generated in this process?
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09/12/24

Electric Physics
A proton is held fixed at the origin. A second proton is placed on the x axis at x = 1.5 m and then released. At what point will this proton's potential energy be equal to its kinetic energy?... more
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07/04/24

Geometric series
Determine whether the geometric series is convergent or divergent. If it is convergent, find its sum. (If the quantity diverges, enter DIVERGES.)10 − 8 + 6.4 − 5.12 +  
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01/19/23

Two tiny particles having charges of +5.00E-6 C ...
Two tiny particles having charges of +5.00E-6 C and +7.00E-6 C are placed along the x-axis. The +5.00-µC particle is at x = 0.00 cm, and the other particle is at x = 100.00 cm. Where on the x-axis... more
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11/20/22

A basketball player jumps straight upward, leaving the ground with an upward initial velocity. In terms of the given information and universal constants, what is the player's vertical jump?
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11/17/22

 Iron is submerged in water question
A scale reads 234 N when a piece of iron is hanging from it. What does it read (in N) when it is lowered so that the iron is submerged in water?
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11/07/22

i need help on this question for physics
A person weighs 613 N on Earth.1) What is their mass?  This person goes to Jupiter where gravity = 24.79 m/s².2) What is their weight on Jupiter? 
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10/31/22

a software company estimates
A software company estimates that the number of copies x, measured in thousands, of its new application that will sell when the price is p dollars per copy (up to $100) satisfies the... more
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10/18/22

Find the maximum and minimum values of the function y = x − 1 x2 + 80x on the interval [1,81]
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10/14/22

inelastic collision
A massless spring (with force constant k = 183 N/m) connects a wall and a block of wood. The system is initially at rest, with the spring unstretched. The block has mass M = 51.7 g and is able to... more
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10/11/22

Please help me!
If you doubled the mass and then tripled the radius of a planet, by what factor would the acceleration due to gravity at its surface change?
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01/26/22

If you put a pie in a completely airless box... Is there still the smell of pie
I under stand you physically wouldn't be able to smell it, however is the smell still there but unable to travel due to there being no air? Or is there no smell?
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07/10/21

The line 8x-y-8=0 is tangent to the graph of f(x)=(x+k)(x^2-1) at the point (1, 0). Find the value of k.
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07/09/21

An equilateral triangle of side 0.250 m has charges 91 = +2.60 x 10-6 C, 92 = -3.75 x 10-6 C, and 93= +2.60 x 10-6 C. 92 Find the y-component of the net force on q2.
Q1 is on top, Q2 is on the right, and Q3 is on the left
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06/19/21

Use the Chain Rule to find 𝑑𝑦 𝑑𝑥 in terms of 𝑥 and simplify the result
𝑦 = 𝑒−𝑢 and 𝑢 = 𝑒−𝑥
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06/18/21

How far away did the shell hit?
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.35 km/s at an initial inclination of 41.7 ◦ to the horizontal. The... more
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06/11/21

Find f(x) using this information
f”(x)=12x^2 - 6x + 2 and f(0)=2, f(2)=0
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Expert Answers •1

09/05/20

1D kinematics multi-system dog cat
A dog is running toward a cat that is 1.5 m away. Initially at rest, the cat sees the dog running toward her and accelerates away from the dog at 0.85 m/s/s directly toward a small pet door that is... more
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08/26/20

Estimating a derivative from the limit definition
Estimate f′(3) for f(x)=3x. Be sure your answer is accurate to within 0.1 of the actual valueI don't understand how I'm supposed to do this. I get different answers every time I figure it.
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08/24/20

Find out whether the series is convergent or divergent.
∑∞n=0 1+n+n^(1/3) ÷ n+√(n4+n2+1)
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08/23/20

Write a triple integral including limits of integration that gives the volume of the cap of the solid sphere  cut off by the plane  and restricted to the first octant.
Write a triple integral including limits of integration that gives the volume of the cap of the solid sphere  cut off by the plane  and restricted to the first octant. What coordinates are you... more
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