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964

Physics help needed

Eric warms up 1kg milk in a pan on a gas stove from 20 °C to 80 °C. Of the energy the gas supplies, 50% is lost and 20% is absorbed by the pan. The remaining energy goes to the milk. The formula for the specific heat of the milk is 3,9 J/g · read more ..

off-topic

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Guest Jun 21, 2019

-2

885

Plz help

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Guest Jun 21, 2019

Jun 20, 2019

1131

+95

I am actually really stuck on this...

I kinda gave up on the last problem... so new problem :)

Let and The complex number d is such that a, b, c, and d form the vertices of a parallelogram, when plotted in the complex plane. Enter all possible read more ..

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Pushy Jun 20, 2019

1089

Help

Complex numbers are often used when dealing with alternating current (AC) circuits. In the equation $V = IZ$, $V$ is voltage, $I$ is current, and $Z$ is a value known as impedance. If $V = 1-i$ and $Z=1+3i$, find $I$. Express your answer as a complex number read more ..

Pushy ●●●●●

Guest Jun 20, 2019

1903

I’m confused

How many distinct ordered pairs of positive integers $(m,n)$ are there so that the sum of the reciprocals of $m$ and $n$ is $\frac14$?

heureka ●●●●

Guest Jun 20, 2019

1338

Help.

Evaluate $i^{11} + i^{16} + i^{21} + i^{26} + i^{31}$.

This is an AoPS question but I don’t know what to do. Can someone help me understand? Just wanted to make that clear.

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Guest Jun 20, 2019

841

Help Please!!!

If $x$, $y$, and $z$ are positive real numbers satisfying: \begin{align*} \log x - \log y &= a, \\ \log y - \log z &= 15, \text{ and} \\ \log z - \log x &= -7, \\ \end{align*}where $a$ is a real number, what is $a$?

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Guest Jun 20, 2019

1381

+95

Plz help plz plz tanks :)

There are four complex numbers such that
and both the real and imaginary parts of are integers. These four complex numbers are plotted in the complex plane. Find the area of the quadrilateral formed by the four read more ..

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Pushy Jun 20, 2019

1129

+1246

Help!

Let a be a positive real number such that all the roots of are real. Find the smallest possible value of a.

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Lightning Jun 20, 2019

1006

+1008

Welcome Thanks For Chosing Web2.0calc

♦♦♦Welcome Thanks For Chosing Web2.0calc♦♦♦
----» We all Welcome You Here to our site and hope you like Being a part of Helping others. We all spend time to help you or others out. Any of us will gladly help you on any math question you have in read more ..

off-topic

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Nickolas Jun 20, 2019

3531

Please help

Venn diagrams can be used to solve word problems involving union and intersection of sets

1. A group of 25 high school students were asked whether they use either Facebook or Twitter or both,Fifeen of these students use facebook and read more ..

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Guest Jun 20, 2019

1010

+1246

Help!

Find all the values of a for which the equations have a common real root. Enter all the possible values, separated by commas.

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Lightning Jun 20, 2019

924

+1246

Help!

If the roots of form an arithmetic sequence, find c.

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Lightning Jun 20, 2019

942

+26

Hello forum people

In the equation y=mx + B what symbolises slope?

hectictar ●●●●●

CharmingTeachers Jun 20, 2019

913

+26

Hello forum people

Your given the equation of a line

12 = + 8
read more ..

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CharmingTeachers Jun 20, 2019

963

+26

Hello forum people may I have assitence.

Given the equation if x is equal to 50

2y + 2x = 500 read more ..

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CharmingTeachers Jun 20, 2019

853

+26

Hello forum people may I have assitence

Your given the equation 1465 = b5 + 5

I have trouble when there backwards.... IDK why.

hectictar ●●

CharmingTeachers Jun 20, 2019

1036

+448

Hi Guy's may I have some help?

The way I did it was the following:

150ft2 = 6x + ( 4 * 6 ) I completed the paraenthasesses
150ft2 = 6x + 12 ft2 Then after that I subtracted 12 from both sides read more ..

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HiylinLink Jun 20, 2019

1081

1. Find the greatest integer x such that

1. Find the greatest integer x such that

2. Find the greatest possible value for where
read more ..

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Guest Jun 20, 2019

684

HALPPP PLZ!!!!!

Let f(x) = px+q, where p and q are real numbers. Find p+q if f(f(f(x))) = 8x+21.

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Guest Jun 20, 2019

880

+1246

Help!

Find the sum of the roots, real and non-real, of the equation , given that there are no multiple roots.

heureka ●

Lightning Jun 20, 2019

1687

Kinetic and Potential energy help please

a 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is its potential and kinetic energy when it lands? Ive tried so many answers but cant seem to find the right ones for this problem, any help will be greatly appreciated!

ElectricPavlov ●

Guest Jun 20, 2019

2219

help

A semi-circle of radius 8 cm, rocks back and forth along a line. The distance between the line on which the semi-circle sits and the line above is 12 cm. As it rocks without slipping, the semi-circle touches the line above at two points. (When the semi-circle read more ..

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Guest Jun 20, 2019

All Questions ⁺⁰237827 Questions

Physics help needed

Plz help

I am actually really stuck on this...

Help

I’m confused

Help.

Help Please!!!

Plz help plz plz tanks :)

Help!

Welcome Thanks For Chosing Web2.0calc

Please help

Help!

Help!

Hello forum people

Hello forum people

Hello forum people may I have assitence.

Hello forum people may I have assitence

Hi Guy's may I have some help?

1. Find the greatest integer x such that

HALPPP PLZ!!!!!

Help!

Kinetic and Potential energy help please

help

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