Answer:
c
Explanation:
I makes the most sense in math. if you put a 3 in the m box it will be the same. So all they did is take out the 3 in the m box
Answer:
The resistance of the lamp is 4Ω.
Explanation:
You have to apply voltage formula :
V = I × R
R = V ÷ I
R = 240 ÷ 60
R = 4 Ω
Answer:
B) Adding many new features to the model makes it more likely to over fit the training set.
Explanation:
Increasing number of features without increasing the amount of training data, increase over fitting in the model because features may be irrelevant and increase the redundant information in the model.
Answer:
0.0625 T
Explanation:
When a charged particle is moving in a region with a magnetic field, the particle experiences a force given by the equation
where
q is the charge of the particle
v is its velocity
B is the magnitude of the magnetic field
is the angle between the direction of the velocity and of the field
For the proton in this problem, we have:
is the force experienced
is the charge of the proton
is its velocity
, since the proton enters the region perpendicular to the magnetic field
Therefore, we can re-arrange the equation to find B:
The bending of light inside the lens of the eyepiece in a telescope refers to the phenomenon named "refraction." Refraction is the bending of light as it passes from one medium to another medium. For instance, when we place a pencil inside a glass of water, we see it bends because the light travels much slower in water than in air.
