The work done to push the box is equal to the product between the force and the distance through which the force is applied:

In our problem, the force is F=1.4 N and the distance covered is d=150 m, so the work done by pushing the box is
Answer:
28.6 ohm
Explanation:
there is a 3rd resistor in series. voltage drop across the resistors will be equal to 60v
7*.2+7*.2 +.2x = 60
2.8+.2x = 60
.2x = 57.2
x = 28.6
Answer:
45C in a minute is
45/60 C in a second
.75 C in a second is 3/4 of an ampere.
Explanation:
Answer:
1.4719 m per sec
Explanation:
Hello
Kinetic energy is the energy associated with the movement of objects. Although there are many forms of kinetic energy
the formula to use is

where m is the mass of the object and v the velocity
lets see the kinetic energy of the sprinter running

Now, the elephant must have the same kinetic energy

it works only the positive root, so the elephant must to walk to 1.4719 m/s to have the same kinetic energy.
Have a great day