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3 years ago

What would the world be like without energy?

1 answer:

3 0

Well without energy we would have no oil, electricty or anything. I mean we need electricty for computers, phones, ovens, cars and so many more. Energy literlaly powers almost everything in the world! So the world would become a place where everyone would have to do things on thier own. They have to build fires to cook food, they have to wash their own clothes, they have to do all these things on their own instead of relying on electricty!

Hopefully this helps! :)

You might be interested in

What is -8,675,309.0 in scientific notation

Sindrei [870]

= 3.456 × 1011
(scientific notation)

= 3.456e11
(scientific e notation)

= 345.6 × 109
(engineering notation)
(billion; prefix giga- (G))

= 345600000000
(real number)

4 0

3 years ago

It is known that the kinetics of recrystallization for some alloy obeys the Avrami equation, andthat the value of n in the expon

trapecia [35]

Answer: $8.76\times 10^{-3} min^{-1}$

Explanation:

Given

n=5

0.3 fraction recrystallize after 100 min

According to Avrami equation

$y=1-e^{-kt^n}$

where y=fraction Transformed

k=constant

t=time

$0.3=1-e^{-k(100)^5}$

$e^{-k(100)^5} =0.7$

Taking log both sides

$-k\cdot (10^{10}=\ln 0.7$

$k=3.566\times 10^{-11}$

At this Point we want to compute $t_{0.5}\ i.e.\ y=0.5$

$0.5=1-e^{-kt^n}$

$0.5=e^{-kt^n}$

$0.5=e^{-3.566\times 10^{-11}\cdot (t)^5}$

taking log both sides

$\ln 0.5=-3.566\times 10^{-11}\cdot (t)^5$

$t^5=1.943\times 10^{10}$

$t=114.2 min$

Rate of Re crystallization at this temperature

$t^{-1}=8.76\times 10^{-3} min^{-1}$

3 0

3 years ago

In science, the prefix hemo- refers to

Andrej [43]

Blood

I learned this in anatomy, and I've taken it twice

8 0

3 years ago

Which can do work faster-a 700 watt gasoline engine or a 300 watt electric motor

iogann1982 [59]

"700 watts" means 700 joules of work per second.

"300 watts" means 300 joules of work per second.

If the labels on both machines are true, and both machines
are loaded to their full capacity, then the 700-watt engine
is doing work faster than the 300-watt one.

3 0

3 years ago

How do the cities in the northern hemisphere compare to those in the southern hemisphere?

a_sh-v [17]

By the rate of the hemisphere

4 0

3 years ago