Answer:
259.456 J
Explanation:
Given that,
Work done on the system = 166 cal
The systam releases 954 J of thermal energy to its surroundings
We need to find the change in internal energy. It can be given by using the first law of thermodynamics as follows :
W = 166 cal = 694.544 (1cal = 4.184 J)
So, the change in internal energy of the system is 259.456 J.
Answer:
Time = 1.36s
Explanation:
coefficient of kinetic friction = μk
μk = F/N = F / mg
where m = mass of the body
g = acceleration due to gravity.
Doubling the force on the box we have,
μk = 2ma/mg
hence μk = 0.15/2 = 0.075
To determine the time it takes to reach a velocity of 2m/s from 1m/s .
From Newton law of motion,
v = u + a*t
for a deceleration of a = μk x g
2m/s = 1m/s + 0.075 x 9.8m/s² x t
t = (2m/s - 1m/s)/0.735m/s²
t = 1.36 seconds..
it will take the 1.36s for the crate to double to 2.0m/s
<u>The answer to your question is going to be option "D."</u>
Oxygen levels first rose in the atmosphere because of (the last option, or "D') cyanobacteria. Cyanobacteria is a type of bacteria that can create toxins that are very dangerous to both humans and animals.
I hope this helps! :)
Answer:
<h3>D. NO MAGE IS FORMED</h3>
Explanation:
<h2>#CARRY ON LEARNING#MARK BRAINLITS</h2>
The 8 moon phases in order are New moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full moon, Waning Gibbous, Third Quarter, and finally Waxing Crescent.