Answer: 708 N
Explanation:
Given
At rest, Elevator reads 588 N
When it starts moving upward at 
, apparent weight changes
i.e. weight can be given by
The apparent weight is 708 N
They are both Simple mechanics
The angle of diffraction of the blue light that passed through a slit of a diffraction grating is 63.5⁰.
<h3>Angle of diffraction</h3>
The angle of diffraction of the blue light that passed through a slit of a diffraction grating is calculated as follows;
mλ = dsinθ
sin θ = mλ/d
sin θ = (1 x 425)/475
sin θ = 0.8947
θ = sin⁻¹(0.8947)
θ = 63.5⁰
Thus, the angle of diffraction of the blue light that passed through a slit of a diffraction grating is 63.5⁰.
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The rate of change of the current in the larger inductor is 0.3mA/s.
To find the answer, we need to know about the relation between the emf and inductance.
<h3>What's the mathematical expression to find the emf in term of inductance?</h3>
- Mathematically, emf induced across an inductor= L× (dI/dt)
- L= inductance and dI/dt = rate of change of current
<h3>What is the rate of change of current in 4.5 mH when when the total emf of the combination is 16 V?</h3>
- As both the inductors are connected in parallel, so emf of the combination remains same across each inductor.
- Emf induced in 4.5mH = 16 V
- dI/dt = 4.5mH / 16 = 0.3 mA/s
Thus, we can conclude that the rate of change of the current in the larger inductor is 0.3mA/s.
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A) 
Let's start by writing the equation of the forces along the directions parallel and perpendicular to the incline:
Parallel:
(1)
where
m is the mass
g = 9.8 m/s^2 the acceleration of gravity
is the coefficient of friction
R is the normal reaction
a is the acceleration
Perpendicular:
(2)
From (2) we find
And substituting into (1)
Solving for a,
B) 5.94 m/s
We can solve this part by using the suvat equation
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the displacement
Here we have
v = ?
u = 0 (it starts from rest)
s = 8.70 m
Solving for v,
