(a)
In a velocity selector, the speed of the beam is related to the magnitude of the electric field and of the magnetic field by the formula:
where
E is the magnitude of the electric field
B is the magnitude of the magnetic field
In this problem, we have
(magnetic field)
(speed of the particles)
Solving the equation for E, we find the electric field:
(b) 3.2 kV
The relationship between electric field and potential difference between the two plates is:
where, in this problem:
is the magnitude of the electric field
is the separation between the plates
Substituting into the equation, we find the potential difference:
Answer:
<em>The net force that acts on the sailboat has a magnitude of 217 N and is applied at an angle of 64° north of east.</em>
Explanation:
<u>Mechanical Force</u>
The second Newton's law states the net force exerted by an external agent on an object of mass m is:
Where is the acceleration of the object. Note both the force and the acceleration are vectors. The relationship between them is the mass, a scalar.
This means the net force and the acceleration have the same direction.
The sailboat has a mass m= 350 Kg and moves at a=0.62 m/s^2. The magnitude of the net force acting on the boat is:
As stated above its direction is the same as the acceleration, thus:
The net force that acts on the sailboat has a magnitude of 217 N and is applied at an angle of 64° north of east.
The Doppler effect occurs when a source of sound or light
moves either toward or away from the observer.
Answer:
It is a instrument used to measure the distance traveled by a vehicle.
Explanation:
This is what it looks like ↓
0.29 m/s is the speed of this wave.
How can we determine a wave's speed?
Given: The wave's traveling wavelength is () = 35 cm
The wave's period (t) is 1.2 seconds.
The wave's frequency is 0.833 Hz.
We must ascertain a wave's wave speed.
Formula for wave speed is 35 x 0.833 (wavelength x frequency).
= 29.167 cm/sec
= 0.29 m/sec
As a result, the wave's speed is 0.29 m/s.
To learn more about wave refer : brainly.com/question/3148541
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