Here is the correct question
A constant electric field E = 100 N/C pointing along the positive x-axis is present throughout a region of space that includes the plane bounded by the y and z axes and the lines y = 50 cm and z = 50 cm. The electric flux through the plane's surface, in N ⋅ m 2/C, is
Answer:
25 Nm²/C
Explanation:
given that
The constant electrical field E = 100 N/C
the field lines y and z = 50 cm and 50 cm respectively
= 0.5 m and 0.5 m
For constant electric field, the flux = electric field x area through which field lines are passing
i.e Flux = (100 ×0.5 × 0.5) Nm²/C
= 25 Nm²/C
Therefore; The electric flux through the plane's surface, in Nm²/C is = 25 Nm²/C
yes is is true cuz when you hold the thermometer by a bulb the heat coming from the bulb will increase the thermometer
B. longitudinal wave
Explanation:
Longitudinal waves are made up of regions of rarefaction and compression. They are waves that are propagated parallel to their source.
- During wave compression, molecules are pressed together and are closer to each other.
- Rarefaction is where molecules are farther apart and are distant.
- In longitudinal waves, the source is parallel to the wave propagation.
- Transverse waves are perpendicular to their source.
- Electromagnetic consists of vibrations in both perpendicular direction.
- Surface waves are seismic waves that are made up of both transverse and longitudinal components.
Learn more:
Electromagnetic waves brainly.com/question/12450147
#learnwithBrainly
Answer:
T = 764.41 N
Explanation:
In this case the tension of the string is determined by the centripetal force. The formula to calculate the centripetal force is given by:
(1)
m: mass object = 2.3 kg
r: radius of the circular orbit = 0.034 m
v: tangential speed of the object
However, it is necessary to calculate the velocity v first. To find v you use the formula for the kinetic energy:
You have the value of the kinetic energy (13.0 J), then, you replace the values of K and m, and solve for v^2:
you replace this value of v in the equation (1). Also, you replace the values of r and m:
hence, the tension in the string must be T = Fc = 764.41 N
1900s -- 1980s
Forensic science R&D in the 1980s
