Answer:
<em>The average speed needed is 68.4 mi/h</em>
Explanation:
<u>Average Speed
</u>
If an object travels a distance d in a time t regardless of the direction, the average speed is the quotient of the distance over the time:

The distance to get to Denver from the Hamilton Street Campus is d=1,778 miles. An estimated time of t=26 hours should be needed to cover that distance, thus you will need to travel at an average speed of:

V = 68.4 mi/h
The average speed needed is 68.4 mi/h
Answer:
The correct answer might be
meters.
Explanation:
<u>The Answer Given might not be correct, I just did what my brain said.</u>
As the angle is perpendicular so Θ=90.
Putting this in the equation to calculate the magnetic force as:
F = evBsinΘ
F= evBsin90 *sin90 = 1 so,
F= evB.
Now when the electron will start to move in a circle, The necessary force that makes the electron rotate in a circle is given by Centripetal force.
So,
Magneteic Force = Centripetal Force
evB =
r =
......(1)
Now the problem is, We don't know " v " so we need to calculate velocity first,
Calculation of Velocity:
In order to calculate the velocity of electron, We should know the potiential difference with which the electrons are accelerated which in our case is 500ev. If "V" is the potiential difference, the energy gained by electrons during accelreation will be Ve. This appear as kinectic enrgy of electrons as,
K.E = Ve
m
= Ve
v =
................(2)
Putting value of velocity in equation 2 from 1:
r =



meters.
Friction = 0.25 * m * g = 10.8
Push = m * a + Friction = 4.4 * 1.5 + 10.8
Answer:
25m/s
Explanation:
p=mv
75 = 3v
v = 75/3
v = 25 m/s
If you want to verify your answer, just insert the value of v to the equation.
Answer:
The tension to bring the guitar string into tune is 372.95 Hz.
Explanation:
Given;
current frequency, f₁ = 248 Hz
current tension, T₁ = 350 N
fundamental frequency, f₂ = 256
The tension on the string to bring the guitar string into tune is calculated as;

Therefore, the tension to bring the guitar string into tune is 372.95 Hz.