The law applied here is Hooke's Law which describes the force exerted by the spring with a given distance. The equation for this is F = kΔx, where F is the force in Newtons, k is the spring constant in N/m while Δx is the displacement in meters.
If you want to find work done by a spring, this can be solved by using differential equations. However, derived equations are already ready for use. The equation is
W = k[{x₂-x₁)² - (x₁-xn)²],
where
xn is the natural length
x₁ is the stretched length
x₂ is also the stretched length when stretched even further than x₁
In this case xn =x₁. So, that means that (x₁-xn) = 0 and (x₂-x₁) = 11 cm or 0.11 m.
Then, substituting the values,
2 J = k (0.11² -0²)
k = 165.29 N/m
Finally, we use the value of k to the Hooke's Law to determine the Force.
F = kΔx = (165.29 N/m)(0.11 m)
F = 18.18 Newtons
Answer:
0.25 T
Explanation:
F = Force required to keep the bar moving = 0.080 N
B = magnitude of magnetic field = ?
L = length of the bar = 50 cm = 0.50 m
v = speed of the bar = 0.50 m/s
R = resistance of the bar =0.10 Ω
Force is given as
B = 0.25 T
Answer:
a) 231 yards
b) 55.2 yards
c) 0 yards to 260 yards
d) Infinite values
Explanation:
This situation can be described as a horizontal line that begins at point (Meredith's house) and ends at point (Bus stop). Where is the varying distance from her house, which can be calculated in the following way:
x=Final Position - Initial Position
or
a) For the first case Meredith is at position and the bus stop at position . So the distance Meredith is from the bus stop is:
b) For the second case the initial position is and the final position . Hence:
c) If we take Meredith's initial position at her house and her final position at the bus stop , the value of varies from 0 yards to 260 yards.
d) As Meredith walks from her house to the bus stop, the variable assumes infinite values, since there are infinite position numbers from to
The medulla in the brain controls the breathing rate in the lungs
<span>A major characteristic of both volcanoes and earthquakes is that they are located in the same geographic area. Most earthquakes are along the edges of tectonic plates. This is where most volcanoes are too. Most earthquakes directly beneath a volcano are caused by the movement of magma.</span>