Answer:
a) Acceleration while the toboggan is going uphill = 8.85 m/s²
b) Acceleration of the toboggan is going downhill = 4.76 m/s²
Explanation:
Resolving the normal reaction into vertical and horizontal component
Nₓ = mg sin θ
Nᵧ = mg cos θ
The frictional force on the toboggan = Fr = μmg cos θ (note that μ = μ(k) = the coefficient of kinetic friction)
Doing a Force balance on the x component taken in the axis parallel to the inclined plane.
The net force that has to accelerate the toboggan has to match the frictional force acting downwards of the plane (In the opposite direction to motion) and x-component of the Normal reaction
ma = Nₓ + Fr
ma = (mg sin θ) + (μmg cos θ)
a = g[(sin 44°) + (0.29 cos 44°)
a = 9.8(0.6947 + 0.2086) = 8.85 m/s²
b) While coming downhill,
The frictional force is acting uphill now (In the direction opposite to motion),
The force balance is
ma = (mg sin θ) - (μmg cos θ)
a = g[(sin 44°) - (0.29 cos 44°)]
a = 9.8(0.6947 - 0.2086)
a = 4.76 m/s²
Wave base is the most affected by a wave in deep water. :]
The optimum wavelength is 450 nm because that is the wavelength of maximum absorbance by FeSCN2+(aq)
you should choose a wavelength with maximum absorbance. In this case, you are using the scattered light, not the absorbed light as your signal. So you should avoid wavelengths where there are absorption peaks.
<h3>What is wavelength ?</h3>
A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in metres (m), centimetres (cm), or millimetres (mm) (mm).
- The distance between two waves' crests serves as an illustration of wavelength. When you and another person have the same overall mindset and can easily communicate, that is an example of being on the same wavelength.
Learn more about Wavelength here:
brainly.com/question/10750459
#SPJ4
Answer: 
The chromium nucleus will complete the reaction.
Explanation:
The given reaction is a type of radioactive nuclei decay:
Positron emission: It is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. This is also known as 
-decay. In this the mass number remains same.
Now according to the given reaction:
The chromium nucleus will complete the reaction.
To change from mass to weight is Fw = 30 kg * 9.8 m/s^2 = 294 N. To change from weight to mass divide by gravity (9.8 m/s^2).
