Your speed is one of the only factors that has an effect on both your thinking distance and braking distance. Put simply, the faster you are going, the greater the distance travelled before you apply the brakes (thinking distance) and the vehicle comes to a complete stop (braking distance).
The statement ‘The Biot-Savart
force law does not apply if the velocity is parallel to the field direction’ is
true. The answer is letter A. Any electron moving in a conductor will produce a
magnetic fiels around the flow. this is the fundamental of Biot – Savart law.
Answer:
Explanation:
<u>Net Force And Acceleration
</u>
The Newton's second law relates the net force applied on an object of mass m and the acceleration it aquires by
The net force is the vector sum of all forces. In this problem, we are not given the magnitude of each force, only their angles. For the sake of solving the problem and giving a good guide on how to proceed with similar problems, we'll assume both forces have equal magnitudes of F=40 N
The components of the first force are
The components of the second force are
The net force is
The magnitude of the net force is
The acceleration has a magnitude of
The direction of the acceleration is the same as the net force:
Answer:
shivering raises your body temperature
To solve this given problem, we make use of the formula:
A = Ao e^( − b t / 2 m)
Substituting all the given values into the equation:
A / Ao = e^( − b t / 2 m)
When A / Ao = 0.60 and t = 50 s, we find for b:
0.60 = e^( − b t / 2 m)
ln ( 0.60 ) = − b t / 2 m
b = − ( 2 m ) ln ( 0.60 ) / t
b = ( − 2 ) ( .200 ) ln ( 0.60 ) / 50
b = .00409
When A / Ao = 0.30, we find for t:
0.30 = e^( − b t / 2 m)
ln ( 0.30 ) = − (0.00409) t / 2 (0.200)
t = − (0.200) ln ( 0.30 ) / 0.00409
t = 118 s
Therefore the number of oscillations is:
oscillations = f * t = 2 s^-1 (118 s) = 236
Answer: 236 oscillations
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