Why is it important to consider experimental error in all the empirical results presented?
1 answer:
You might be interested in
Answer:
E = 401.3 eV
Explanation:
As we know that the thinnest gap in the direction of metal is given as
so here we can say that lowest energy of photon will not able to break this electron from above thickness
so we will have
here we have
also we have
so we will have
Answer:
t = √2y/g
Explanation:
This is a projectile launch exercise
a) The vertical velocity in the initial instants ( = 0) zero, so let's use the equation
y = t -1/2 g t²
y= - ½ g t²
t = √2y/g
b) Let's use this time and the horizontal displacement equation, because the constant horizontal velocity
x = vox t
x = v₀ₓ √2y/g
c) Speeds before touching the ground
vₓ = vox = constant
=
- gt
= 0 - g √2y/g
= - √2gy
tan θ = Vy / vx
θ = tan⁻¹ (vy / vx)
θ = tan⁻¹ (√2gy / vox)
d) The projectile is higher than the cliff because it is a horizontal launch