Answer:
The police will cite you for speeding.
Explanation:
To know if the police will cite you for speeding we need to find the average speed (v):
<u>Where:</u>
x(f): is the final distance = 39 mi
x(i): is the initial distance = 0
t(f): is the final time = 53 min = 0.88 h
t(i): is the initial time = 17 min = 0.28 h
Hence, the average speed is:
Therefore, since the limit speed is 60 mph and your speed is 65 mph, the police will cite you for speeding.
I hope it helps you!
The answer is c. athletes foot
Answer:
4 m/s
Explanation:
T = Tension
m = Mass of string
Velocity of wave in string is given by
For first cable
For second cable
The speed of wave in cable two is 4 m/s
The resistor's current I in amps is equal to the resistor's voltage V in volts (V) divided by the resistance R in ohms (Ω) I hope this helped
Answer:
K remains constant
Explanation:
The magnetic force does not do any work on the ion.
In fact, the magnetic force due to a magnetic field is always perpendicular to the motion of the charge itself. Keep in mind that the work done by a force is given by
where F is the magnitude of the force, d is the displacement of the particle, and is the angle between the direction of the force and the displacement. Since the magnetic force is perpendicular to the displacement of the ion, then and , so the work done is zero.
For the work-energy theorem, the work done on the ion is equal to the variation of its kinetic energy:
However, since W=0, then , which means that the kinetic energy of the ion does not change.