# LeVocaloid

### A body of mass 0.10 kg is attached to a wall by a spring with constant k= 15N/m.?

A body of mass

0.10 kg

is attached to a wall by a spring with constant

k= 15N/m

. It is initially pulled a distance of

x = 0.20 m

from its equilibrium position and released from rest.

a. What is the body’s initial potential energy?b. What is the body’s initial kinetic energy?c. What is the body’s total energy?d. What is the body’s speed when it passes through the equilibrium position?

1 AnswerPhysics8 months ago### Potential Energy and Conservation of Energy Question?

A 20-kg cannonball is fired from a cannon with a muzzle speed of 1000 m/s at an angle of 37° with the horizontal. A second ball is fired at an angle of 90°. Use the law of conservation of mechanical energy to find

(a) the maximum height reached by each ball and

(b) the total mechanical energy at the maximum height for each ball

Let y = 0 at the cannon

Need help on this physics question please

1 AnswerPhysics9 months ago