Answer:
Work done on the car will be 548440.9463 J
Explanation:
We have given mass of the car m = 1075 kg
As the car finally stops so final velocity of the car
Initial velocity of car u = 115 km/hr
Work done is equal to change in kinetic energy
So work done
=
As the work done is negative so work is done on the car to stop it .
Answer:
c).
Explanation:
As we know that weight of the automobile is given here
so weight = mass times gravity
now from Newton's law
A method to prove if the statement is true is by trial and error method. Since we are already given different sets of values, we can try to see if they match the given conditions: (consecutive, odd integers):
Looking at the choices:
A. consecutive odd integers (OK)
(-7) + (-9) + (-11) = -27
Since the integers in choice A match the statement, then choice A is the correct answer.
Answer:
1.38 x 10^-18 J
Explanation:
q = - 1.6 x 10^-19 C
d = 5 x 10^-10 m
the potential energy of the system gives the value of work done
The formula for the potential energy is given by
So, the total potential energy of teh system is
As all the charges are same and the distance between the two charges is same so the total potential energy becomes
K = 9 x 10^9 Nm^2/C^2
By substituting the values
U = 1.38 x 10^-18 J
We the human earths rotate round him