Answer:
Δx = 1.2 m
Explanation:
The CHANGE of spring length) (Δx) can be found using PS = ½kΔx²
Δx = √(2PS/k) = √(2(450)/650) = 1.17669... ≈ 1.2 m
The actual length of the spring is unknown as it varies with material type, construction method, extension or compression, and other variables we have no clue about.
Because less energy is being wasted. non-renewable resources will last longer.
the cost is kept lower. hope it helps :)
Answer:12.206 cm,
Explanation:
Given
Insect walks 15 cm to the right
so its position vector is
Now it moves 10 cm up so its new position vector

Now it moves 8 cm left so its final position vector is

so its displacement is given by

For direction, let \theta is the angle made by its position vector with x axis


Answer:
Hello there!
This is a picture that helped me learn the phases in an easy way. I hope it helps you too.
Explanation:
Yes, Kinetic Energy is a scalar quantity because the direction is not needed. A scalar quantity is one dimensional measurement.
Explanation:
- Kinetic Energy is a scalar quantity that means it has only a magnitude and no direction.
- Energy has a size but no direction; two objects can have the same kinetic energy but they travel in opposite directions.
- The formula of Kinetic Energy is
- K.E =

- Mass is a scalar quantity and velocity is a vector quantity.
- squaring velocity will make vector to scalar quantity.