Answer:
A
Explanation:
Tech A has all the right components connected together. Tech B thinks that the steering is loose. Think aboout it, would steering be hard or easy if something breaks in tjose components? Definitely hard and clunky!
The maximum voltage generated in the coil is 3.14 V.
According to the question, we are provided that a bicycle turns 1000 of the area of 0.10 m2, where the coil rotates half a revolution per second, which is placed in a uniform magnetic field of 0.01 T.
Therefore, no .of turns the coil took, N = 1000
Area of the coil, A= 0.10 m²
Frequency of the system =0.5 revolutions per second
= 0.5 Hz
The intensity of the Magnetic field , B =0.01 T
So the Equation we refer to for the calculating the desired value
E(ind) = 
= -d(NBAcosωt) / dt
= − NBA d(cosωt) /dt
= NBAωsinωt
if sinωt=1,
maximum E(ind)= NBAω
Since we know, ω=2πf
Therefore, (Eind)max = NBA(2πf)
= (1000)(0.01)(0.1)(2π)(0.5)
(E(ind))max= 3.14v.
the value for the voltage we got is 3.14 V
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D), because the roller coaster it's falling, therefore, losing height, but gaining velocity
Answer:
D. Newton's Third Law of Motion
Explanation:
Newton's law of gravity is definitely not applicable to your hands. So we can cross this bad boy out
Newton's First Law is F=MA (force equals mass times acceleration). This is basically the root of most physics but it isn't the reason for your hand being red after hitting a wall.
Newton's Second law deals with velocities and forces, so even though you are apply a force your are not changing the velocity of the wall much.
Newton's Third Law basically says that for whatever force you apply to an object, that object will apply an equal and opposite force back to you. This is why your hand gets red. When you slap the wall with all your strength, the wall hits your hand back with the same amount of force. The 2nd law can also be seen when you're trying to push a desk and it won't budge. You are pushing on it, but the desk is pushing back. (there are multiple other factors applicable like friction but we physicists like to ignore them :) )
I hope this helps!
Over time, the types of technology can vary and be improved upon so that more advanced techniques become more valued. This could be the situation with mining whereby back in the 1500's in underground mines the rock was broken by fire setting ie lighting a fire below the rock face to heat up the rock and then throwing cold water on it to crack it, so that it could be dug by hand. With the advent of explosives, this all changed so that the rock could be blasted. The increase in advance rates for an underground heading have thus gone from 5-20 feet per month to up to 300meters (984 ft) per month for a 24/7 mining operation, which is a huge improvement.
