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3 years ago

HOW DO WE HELP OTHERS NOT BE SAD IF THEY DON'T LIKE HUGS?

Physics

2 answers:

svetlana [45]3 years ago

6 0

You need to hug them how much they need to like.

Rzqust [24]3 years ago

3 0

Explanation:

hug is not the only solution to help someone you can take them to Peaceful place and sit with them saying nothing.

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What career has to do with one of these listed.... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal e

Darya [45]

A general career in engineering... like petroleum engineer for fossil fuel drilling, mechanical engineer for hydro/geo/solar/wind or chemical engineer for biomass, solar and nuclear.

8 0

3 years ago

400 gallons of pesticide is accidentally spilled into a lake and uniformly mixes with the water. The volume of the lake includin

svet-max [94.6K]

Answer:

t=27725.8minutes

Explanation:

To determinate use the law the change of volume in determinate time is derivate so:

$\frac{dV}{dt}=flowin-flowout$

The flow in is zero and the flow out is modeling with V as the volume out in the volume of the lake in the reason of change.

$\frac{dV}{dt}=0-(\frac{V}{10x10^{8}})*5000\\\frac{dV}{dt}=-5x10^{-5}*V \\dV*V=-5x10^{-5}*dt$

Integrate to get the volume function

$\int\limits{\frac{1}{V}}\, dv=\int\limits{-5x10^{-5} }\, dt\\ ln(V)=-5x10^{-5}*t\\ln*e(V)=C*e^{-5x10^{-5}*t}\\$

The find the constant C in the time t=0 the volume is knowing so:

$t=0s\\V=400\\V=C*e^{0}\\C=400$

$V=400*e^{-5x10^{-5}*t}$

The volume is 1 part per million so:

$\frac{V}{10x^{8}}=\frac{1}{10x^{6}}\\ V=100$

$V=400*e^{-5x10^{-5}*t}\\100=400*e^{-5x10^{-5}*t}\\\frac{100}{400}=e^{-5x10^{-5}*t}\\ln*\frac{1}{4}=ln*e^{-5x10^{-5}*t}\\-ln(4)=-5x10^{-5}*t\\ t=\frac{-ln(4)}{-5x10^{-5}}=27725.88\\t=27725.8minutes$

8 0

3 years ago

Velocity vs time graph

allochka39001 [22]

Answer:

c...........................

5 0

3 years ago

¿Por qué cuando agrego cubos de hielo a un vaso de gaseosa, estos se derriten?

77julia77 [94]

Answer:

Esto se debe a que la soda está más caliente que el hielo, lo que hace que pase por su punto de fusión.

Explanation:

Me enteré de esto durante la clase de ciencias hace un par de años. jajaja

4 0

3 years ago

A 9kg bowling ball rolls of a table and strikes the ground. If the ball is in the air for 0.5 sec, how fast is the ball moving w

stepladder [879]

Falling for 1 second it would have accelerated to 9.8 metres per second

so the answer is 9.8*0.05=0.49m/sec

that is your answer

4 0

3 years ago