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ToughSTEM

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Hot Questions

Water flows through a 2.5cm diameter pipe at 1.9m s . If the pipe narrows to 1.5cm diameter, what is the flow speed in the constriction? Ans v m s

Last Viewed 3 minutes ago

Biomagnification of toxic substances means that . Larger organisms are not affected by the toxic substances, but they suffer stress when their prey such as plankton are killed off toxic substances become increasingly concentrated in the tissues of organisms in each h...

Last Viewed 6 minutes ago

Ilya and anya each can run at a speed of 8.30mph and walk at a speed of 3.90mph . They set off together on a route of length 5.00miles . Anya walks half of the distance and runs the other half, while ilya walks half of the time and runs the other half. How long does ...

Last Viewed 7 minutes ago

A helium neon laser emits red light at wavelength lambda 633 nm in a beam of diameter 4.0 mm and at an energy emission rate of 3.0 mw. A detector in the beam s path totally absorbs the beam. At what rate per unit area does the detector absorb photons? Photons s m2

Last Viewed 7 minutes ago

A light rail commuter train accelerates at a rate of 1.55 m s2. How long does it take it to reach its top speed of 80.0 km h starting from rest? S (b) the same train ordinarily decelerates at a rate of 1.65 m s2. How long does it take to come to a stop from its top s...

Last Viewed 10 minutes ago

The theory of plate tectonics states . The earth is formed from gradualism the earth s crust floats over the ocean the earth is broken up into plates that move over time that the earth formed from cataclysmic events the fossil record can be used to determine the age ...

Last Viewed 17 minutes ago

A shaft rotates at a rate of 80 rpm against a constant torque of 1000 n. M. Calculate a. The power required to rotate the shaft. B. The work required to rotate the shaft through 100 revolutions.

Last Viewed 25 minutes ago

An electron is launched at a 45 degree angle and a speed of 5.0 10 6m s from the positive plate of the parallel plate capacitor shown in the figure(figure 1) . The electron lands 4.0 cm away. 1 what is the electric field strength inside the capacitor? Express your a...

Last Viewed 25 minutes ago

Water is poured into a container that has a small leak. The mass m of the water is given as a function of time t by m 4.50t0.8 ? 2.80t 16.50, with t? 0, m in grams, and t in seconds. (a) at what time is the water mass greatest? S(b) what is that greatest mass? G(c)...

Last Viewed 29 minutes ago

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We're currently expanding our functionality and focusing on becoming the best there is at :

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generating solutions to problems you'll find in STEM homework, tests, and quizes

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making those solutions accessible and very easy to find (for free - students pay too much already - we would know)

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becoming a database which has EVERY problem indexed - and with it atleast one solution - so you'll always be able to find a solution

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Because we STEM Major googlers need a home.

Nothing is better than trying to solve a problem for homework and not even knowing if you did it right.

Second best is when you have the answer (only for the odd problems of course) - but can not figure out why you're getting it wrong. Is there a fundemental error? Is there a calculator mistake?

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