Answer:
<h3>The answer is 53.27 mi/hr</h3>
Explanation:
To find the velocity covered by the car we use the formula
where
d is the distance
t is the time
From the question
d = 554 miles
t = 10.4 hrs
We have
We have the final answer as
<h3>53.27 mi/hr</h3>
Hope this helps you
Answer:
See the explanation below
Explanation:
To improve the strength in the arms can be performed arm push-ups, there are different variants for this exercise. But ideally, perform the known basic exercise, try to touch with the chest the floor and then rise up to the length of the arms using the strength of these. It will be necessary for beginners to perform a routine of 3 sets to 10 repetitions. Rest one day. In the third week you can perform 4 sets to 25 repetitions, resting only one day. This will improve the strength in the arms considerably.
For the legs should stimulate the muscle of the quadriceps, should perform an exercise known as squat, to perform it should be lowered with your back straight until the knees form an angle of 90 degrees, for beginners should perform 3 sets of 15 repetitions a day, resting only one day. In the second week you can perform 4 sets of 25 repetitions a day, resting one day a week.
''The freezer and room are not an isolated system, since electrical energy flows in.'' is the correct statement.
<h3>
What is Second Law of Thermodynamics?</h3>
The Second Law of Thermodynamics says that "in all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than the energy of the initial state."
So we can conclude that ''The freezer and room are not an isolated system, since electrical energy flows in.'' is the correct statement.
Learn more about law here: brainly.com/question/820417
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Answer:
The frequency must be: 
Explanation:
If the work function of the metal (
) is 3 eV, then we can use the formula for the kinetic energy of an ejected electron:
considering for the minimum KE = 0, and using the Plank constant h in eV s as: 4.14 * 10 ^(-15) eV s, to solve for the frequency:
