Question

Why is the speed of an electric signal so much greater than the speed of sound?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Physics

Related Physics Q&A

Find answers to questions asked by students like you.

Q: A diverging lens (n = 1.50) is shaped like that in Figure 23.25c. The radius of the first surface is...

A: Click to see the answer

Q: If the frequency of sound is doubled, what change will occur in its speed? In its wavelength?

A: Click to see the answer

Q: A package of mass mm is released from rest at a warehouse loading dock and slides down the hhh = 3.4...

A:      

Q: What happens to the efficiency of a heat engine when the temperature of a reservoir into which therm...

A: Click to see the answer

Q: 1. Consider a child holding a helium balloon in a closed car at rest. What would the child observe t...

A: Part A: Initially the child and the balloon are at rest , when the car suddenly accelerates from res...

Q: A 50kg student traveling in a car with a constant velocity has a kinetic energy of 1.2 × 10^4J .What...

A: Given information: The mass of the student (m) = 50 kg The kinetic energy of the student (K.E) = 1.2...

Q: Answer the following. (a) What is the surface temperature of Betelgeuse, a red giant star in the con...

A: A red giant star radiates the wavelength,

Q: A bat flying in a cave emits a sound and receives its echo 0.1s later.Show that its distance from ca...

A: Click to see the answer

Q: What are metal spiked shoes not a good idea for golfers on a stormy day?

A: The conical shaped metal-spiked shoe reduces the electrical resistance for electron movement making ...

Q: Fill in the blanks: Newton’s first law is often called the law of _____; Newton’s second law is the ...

A: Newton’s first law is often called the law of inertia. Newton’s second law of motion is the law of m...

Q: One person has a threshold of hearing of 5dB, and another of 10dB. Which person has the more acute h...

A: The relation between intensity of sound and threshold is given as, By solving this,

Q: A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. If the engi...

A: Click to see the answer

Q: Do heavier objects fall more slowly than lighter objects? EXplain.

A: No, the heavier object does not fall more slowly than lighter objects. The heavier and lighter objec...

Q: If a block of mass m lies on a wedge of mass M, here all surfaces are smooth, and the block slips on...

A: Click to see the answer

Q: A stone is dropped at t = 0. A second stone, with 3 times the mass of the first, is dropped from the...

A: Click to see the answer

Q: A refrigerator moves heat from cold to warm. Why does this not violate the second law of thermodynam...

A: According to the second law of thermodynamics, heat cannot flow from a cold body to a hot body unles...

Q: The mass of an atom is measured in atomic mass units. One atomic mass unit is equal to 1.66x10-27 kg...

A: The masses of atoms and subatomic particles are very small.

Q: A electron is projected horizontally with speed 2.00 x 103 m/s inside a verticallydownward directed ...

A: Given, Velocity of electron, Charge on electron, q = Magnetic field, B = Mass of electron, m =

Q: What generally happens to the temperature of rising air? Of sinking air?

A: Click to see the answer

Q: A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. If she ben...

A: Click to see the answer

Q: Are standing waves a property of transverse waves, of longitudinal waves, or both?

A: In transverse wave, the direction of propagation of the wave is perpendicular to the direction of os...

Q: When a slingshot exerts a 10 Newton force on a rock, the rock accelerates at 50 meters per second sq...

A: From Newton’ second law of motion,  

Q: How much current does a 1500 Watt heater draw if supplied with a 120 Volt source?

A: Given Data: Power, P = 1500 W Voltage, V = 120 V   Solution: Current, I = P/V = 1500 / 120 = 12.5 A

Q: Thank you for your help.

A: Write the given expression of the position vector.  

Q: A laser beam is used to levitate a metal disk against the force of Earth’s gravity. (a) Derive an eq...

A: Consider the light of intensity I strike a metal disk of cross-sectional area A (radius r) and mass ...

Q: Van der Waals forces can hold inert gas atoms together to form solids at lowtemperature, but they ca...

A: In the case of solids, the molecules have less energy and are closer together. Hence, the Van der Wa...

Q: In the circuit shown the branch current I3 = 2A. What is the correct junction rule equation for the ...

A: Junction rule states that at any junction in an electrical circuit, sum of the currents flowing into...

Q: Red light has a longer wavelength than violet light. Which has greater frequency?

A: Click to see the answer

Q: A bullet of mass m = 8.00 g is fired into a block of mass M = 160 g that is initially at rest at the...

A: According to the second equation of motion is,

Q: Why will dust be attracted to a DVD wiped with a dry cloth?

A: When a DVD is wiped with dry cloth, electron transfer takes place. It may be from either DVD to dry ...

Q: A stone weighing 10 Newtons is sitting on the side of a hill that is at a 30o angle with the horizon...

A: The free body diagram of the body(stone) is shown as;   The component of the weight of stone acting...

Q: A uniform cross-sectional area U-tube is open to the atmosphere, is partially filled with mercury (d...

A: Click to see the answer

Q: What is the advantage of studying a collision process in center of mass frame?

A: The advantages of a collision process in center of mass frame are, The motion of the body can be des...

Q: If the fundamental frequency of a note is 200Hz, what is the frequency of the second harmonic?

A: Write the equation to find frequency of the second harmonic Harmonic2nd = 2 x Frequency = 2 x 200 Hz...

Q: What is the difference between energy and power?

A:   S.No Energy Power 1 Capacity to do work Amount of work done 2 It is measured in Joules It i...

Q: A simple pendulum, 1.00 m in length, is released from rest when the support string is at an angle of...

A: Given Length of the pendulum L = 1.00 m Angle of the pendulum θ = 48.0o

Q: A uniform cross-sectional area U-tube is open to the atmosphere, is partially filled with mercury (d...

A: Click to see the answer

Q: How do frequency and period relate to each other?

A: Time period is the time taken to complete one revolution or oscillation. Frequency is the number of ...

Q: A 50kg student traveling in a car with a constant velocity has a kinetic energy of 1.2 × 10^4J .What...

A: The expression for the speed by using kinetic energy relation,  

Q: The energy dissipated when a car hits a tree at 70 miles per hour is ABOUT how much greater than tha...

A: Let the mass of the car is 1 Kg. Where, m = mass of the car v = velocity of car  

Q: A ball leaves a girl's hand with an upward velocity of 6 meters per second. What is the maximum heig...

A: Click to see the answer