The increase in entropy is directly related to the increase in temperature.
Answer: electrical energy
Explanation:A battery is a device that is able to store electrical energy in the form of chemical energy, and convert that energy into electricity
Answer:
The answer is "
".
Explanation:
Formula for calculating the mass in He:
Formula for calculating the mass in 
:
by using the temperature balancing the equation:
Doesn't seem like we know much here, but we can answer it. Let's talk about what we know. We know it takes 3.24 s for the ball to go up and drop back down again. We know that gravity is the only force acting after the ball leaves the hand, so a = 9.8 m/s^2 (we'll say it's negative in our equations because down being negative is intuitive). We also know that it stops moving for a brief moment at the top of the arc, where v = 0 m/s. Because gravity is the only force, and it slows it down on the way up at the same rate it speeds it up on the way down and the distance covered in upward and downward motion is the same, we can confidently say that it will reach the top of its arc (where v = 0 and it turns around) in half the total time it is in the air, so it takes 1.62 s to reach the peak. Now we can use a kinematics equation, let's use vf = vi + a*t, where vf is final velocity and is 0, vi is initial velocity and is some unknown v we need to solve for, a is acceleration and is -9.8 m/s^2 and t is time and since this is just to the top of the arc, we'll use half the time so 1.62 s. We can solve for vi and plug stuff in like so: v = -a*t = -(-9.8m/s^2)*(1.62s) = 15.876 m/s.
Answer:
Magnitude of vector A is 51.4 m
The angle of vector A with positive x-axis is θ= 
Explanation:
Given is
=-31m
=41m
Let and are components of a vector A,
The magnitude of vector A will be:
= 
A = 51.4 m
we know
θ1= 
= 
=
Vector A is present in 2nd quadrant as x-component of vector A is negative and y-component is positive.
For finding the angle of vector with positive x-axis,
θ=180-52.9
θ=
