<h3>
Answer:</h3>
12250 J
<h3>
Explanation:</h3>
<em>elastic potential energy = 0.5 × spring constant × (extension)2</em>
spring constant = 500
extension = 7cm
7^2=49
0.5 × 500 × 49 = 12250 J or 12.25kJ
Answer:
The answer should be A and B. I don't fully know so don't quote me on that! Haha.
Explanation:
Answer:
La aceleración del camión que parte del reposo y alcanza la velocidad de 40 km/h en 5 segundos es de 2.22 m/s².
Answer: Galileo's laws of Motion determined that the natural state of an object is rest or uniform motion, objects always have a velocity, sometimes that velocity has a magnitude of zero rest. objects resist change in motion, which is called inertia.
Explanation: