The change in the internal energy of the system is 110 kJ.
<h3>What is internal energy?</h3>
Internal energy is defined as the energy associated with the random, disorder motions of molecules.
calculate the change in internal energy, we apply the formula below.
Formula:
- ΔU = Q-W.................... Equation 1
Where:
- ΔU = Change in internal energy
- Q = Heat absorbed from the surroundings
- W = work done by the system
From the question,
Given:
Substitute these values into equation 1
Hence, The change in the internal energy of the system is 110 kJ.
Learn more about change in internal energy here: brainly.com/question/4654659
Answer:
The answer is E. Decrease, increase, decrease
Explanation:
The pressure within the tire wall is a result of the molecules of air colliding with the walls of the tire, if there is a leakage that means some or all of the air molecules will escape resulting in a decrease in the collision between the molecules and the tire wall which means the pressure decreases within the walls which also translates to a decrease in pressure exerted by the tire on the ground surface.
Before the leakage, the tire walls are kept tensed due to the internal pressure exerted by the air molecules. When the leakage occurs the air molecules escape and this makes the tire loose its firm upright shape thereby falling to the floor and creating an increase in the area of contact between the tire and the floor surface.
The force exerted on the floor by the tire is proportional to the the pressure exerted and the surface area through which this force is applied, though the pressure is seen to decrease and the surface area seen to increase, one must consider the weight loss due to the air molecules that escapes which causes the force to decrease.
Answer:
a) 

b) a = 1.5 m/s²
Explanation:
a) The horizontal and vertical components of Emily's force can be found knowing the angle and the exerted force.
Since the handle is inclined at 40.0° below the horizontal we have:


b) The acceleration of the car can be calculated as follows:
We used the horizontal component of the force because the cart is moving in that direction.

Hence, the acceleration of the car is 1.5 m/s².
I hope it helps you!
The vertical velocity of the ball is:

. Since gravity acts at

, this means that the time of flight up to the maximum height (at which vertical velocity is 0) would be:

This maximum height is:

Then the time for it to fall down will be:

The total time will be 3.69 + 3.73 = 7.42 seconds.
Answer:
The speed of the electron is
.
Explanation:
Given:
Mass of electron is, 
Radius of circle is, 
Force acting on the electron is, 
Now, we know that, for a circular turn, the force acting on the electron is due to centripetal force. Centripetal force acting on the electron is given as:

Here, 'v' is the velocity of the electron.
Now, plug in all the given values and solve for 'v'. This gives,

Therefore, the speed of the electron is
.