Given that:
spring compressed ( x) = 0.2 m
Work (W) = 24 J
determine , spring constant (x)=?
We know hat ,
Work (W) = (1/2). k.x²
24 = 1/2 ( k × 0.2²)
48 = k × 0.2²
<em> k = 1200 N/m</em>
Answer:
4 seconds
Explanation:
Start with this observation: the distance traveled by car A, plus the distance traveled by car B, plus the original 15 meter gap, equals the 55 meter separation at time t.
dA + dB + 15 = 55
You're given the equation for distance traveled at constant acceleration when the initial velocity is 0:
d = 0.5at²
Given that the acceleration of car A is 2 m/s² and the acceleration of car B is 3 m/s², all you have to do is plug in the expressions and variables and solve for t.
0.5 (2) t² + 0.5 (3) t² + 15 = 55
t² + 1.5 t² = 40
2.5 t² = 40
t² = 16
t = 4
Answer:
Changes in Temperature
Explanation:
For an exothermic reaction, heat is a product. Therefore, increasing the temperature will shift the equilibrium to the left, while decreasing the temperature will shift the equilibrium to the right.
hope this helps :')