Explanation:
think4
pleas! mark me s brainliest please please
Since the density of the substance is ρ (rho),
==> every cm³ of this substance has ρ grams of mass.
Then
==> V cm³ of it has ρV grams of mass. That's ' m '.
and
==> 3V cm³ of it has 3ρV grams of mass. That's ' <em>3m</em> '.
Answer:
1 is community 2 habitat 4 producer 5 consumer 6 food chain 7 predator 8 prey sorry I don't know 4
Answer:
It does not violate the first law because the total energy taken is what is used 100J = 25J + 75J
But violates 2nd lawbecause the engine has a higher energy after doing work than the initial for e.g A cold object in contact with a hot one never gets colder, transferring heat to the hot object and making it hotter confirming the second law
KE = PE
Work done = PE = KE
Wd = force * distance
Force = m.a
Distance = s
But a = v -u/t
v = final velocity
u = initial velocity
t = time
s = (t)(u + v)/2
KE = body starts from rest
Wd = m * (v-u/t) * (t)(u+v)/2
Wd = m * (v-0/t) * (t)(0+v)/2
Wd = m * (v-0) * (0+v)/2
Wd = m * (0 + v^2 - 0 + 0)/2
Wd = m * v^2 /2
Wd = 1/2 mv^2
Therefore if h=PE/(12000kg * 9.8m/s^2)
And PE=KE
h=5400000J/117600kgms^2
h=45918367.3m2/s4