by the formula of spring force we know that
![F = kx](https://tex.z-dn.net/?f=F%20%3D%20kx)
here we know that
![F = 100 N](https://tex.z-dn.net/?f=F%20%3D%20100%20N)
![x = 0.1 m](https://tex.z-dn.net/?f=x%20%3D%200.1%20m)
now we will have
![100 = k \times 0.1](https://tex.z-dn.net/?f=100%20%3D%20k%20%5Ctimes%200.1%20)
![k = 1000 N/m](https://tex.z-dn.net/?f=k%20%3D%201000%20N%2Fm)
now by similar way if the stretch in spring is 0.25 m
force is given by
![F = kx](https://tex.z-dn.net/?f=F%20%3D%20kx)
![F = 1000 \times 0.25](https://tex.z-dn.net/?f=F%20%3D%201000%20%5Ctimes%200.25)
![F = 250 N](https://tex.z-dn.net/?f=F%20%3D%20250%20N)
so it will require F = 250 N force
Explanation:
Equation for Impact
FΔt = ΔP,
F = force
Δt = Impact of time
ΔP = Change in momentum
Car steering is engineered to fail in order to maximize the time of contact and hence reduce the initial impact and mitigate the damage incurred.
Road guard railing crumple on contact to maximize impact time and hence reduce impact intensity and mitigate damage.
Road safety containers are loaded with liquid or sand as they improve the period of impact.
Conduction occurs when heat is transferred to an object through direct contact with particles.
When a ray of light strikes a plane mirror the light of the ray it reflects off from the mirror. reflection is a change in direction from the light ray.
Answer:
0,33 Volt
Explanation:
v = 340 000 m/s - Initial electron speed
m = 9.1·10⁻³¹ kg - Mass of an electron
W = m·v² / 2 - Initial kinetic energy of an electron
W = 9.1·10⁻³¹·(340 000)² /2 ≈ 5.26 · 10⁻²⁰ J (1)
Q = 1.6·10⁻¹⁹ C - Electron charge modulus
The work of the electric field:
A = Q·V (2)
Equate (2) and (1):
Q·V = W
V - Electric field potential difference
V = W / Q = 5.26 · 10⁻²⁰ / 1.6·10⁻¹⁹ ≈ 0,33 Volt