The average power is 
Explanation:
First of all, we calculate the work done to accelerate the car; according to the work-energy theorem, the work done is equal to the change in kinetic energy of the car:
where
:
is the final kinetic energy of the car, with
m = 2000 kg is the mass of the car
v = 60 m/s is the final speed of the car
is the initial kinetic energy of the car, with
u = 30 m/s is initial speed of the car
Soolving:
Now we can find the power required for the acceleration, which is given by
where
t = 9 s is the time elapsed
Solving:
Learn more about power:
brainly.com/question/7956557
#LearnwithBrainly
Answer:
An “international employee” is defined as an employee of Stanford University whose work site is located.
Explanation:
Answer: 482.8032 km per hr
Explanation: 300 * 1.609344 =
Answer: Voltage
Voltage
is the measure of force or potential energy that required moving a unit charge
from one location to another through a conductor. This potential energy is
stored in the form of an electric charge imbalance and capable of provoking
electrons to flow in material through which charges can easily flow.
Answer:
Magnesium is the correct answer
Explanation:
It is magnesium because as we move down the periodic table group, atomic sizes increase which is as a result of lesser forces of attraction between nucleus and valence of an atom which makes the atom to be prone to leave as electrons so easily, elements become more reactive.
But as we move along the period , atomic sizes decrease because there is a more force of attraction between nucleus of an atom and it valence electrons making it less reactive just as the case in magnesium. Other elements are more reactive than it across the group.
