You have decided to increase the detection range of your iphone14 with a highgain, directional parabolic dish antenna to be able to access more distant cell towers (somewhat more difficult to get into your pocket or purse, however). A 3m-diameter parabolic dish is readily available commercially, and the desired sinusoidal radio signal specification is for Emax = 0.10 µV/m. Assume the antenna absorbs all the radiation that is captured by the dish (100% efficiency): (a)  What is the amplitude of the magnetic field in this signal? (b)  What is the intensity, I, of the radiation received by the antenna? (c) What is the power received by the antenna?

Q: A block of mass M = 10 kg is sitting on a surface inclined at angle θ = 45°. Given that the coeffici...

A:

Q: This may seem like an easy question for a physics type to answer: With what force does a rock that w...

A:

Q: An electric wire in the wall of a building carries a dc current of 25 A vertically upward. What is t...

A: Consider a wire having current I moving due north (i.e., from south to north) and a point P which is...

Q: A 12.0 V battery isconnected into a series circuit containing a 10.0 Ohms resistor and 2.00 H induct...

A:

Q: A car is raised a certain distance in a service-station lift and therefore has potential energy rela...

A: Let, mass of the car = m Initially, car is raised to height = h Finally, car is raised to a height =...

Q: What frequency ranges of a radiation curve do red, green and blue light occupy?

A:

Q: Which requires a physical medium in which to travel- light, sound , or both? Explain.

A: Light is an example of longitudinal wave and sound is a transverse wave.

Q: 1. What refers to the dynamics of air precipitation on the windward slope of mountains?

A: When the flow of warm air approached the mountain range it acts as a barrier for the airflow. As the...

Q: What is transverse Doppler effect?

A: Transverse Doppler Effect: When a source of light moves at right angles to line joining observer to ...

Q: One billiard ball is shot east at 2.4 m/s . A second, identical billiard ball is shot west at 0.80 m...

A:

Q: A 5300 kg open train car is rolling on frictionless rails at 19 m/s when it starts pouring rain. Rai...

A:  

Q: A small ball of mass 1.3 kg is attached to one end of a 1.80-m-long massless rod, and the other end ...

A:

Q: A 1000 kg safe is 2.0 m above a heavy-duty spring when the rope holding the safe breaks. The safe hi...

A: According to the conservation of energy, the loss of gravitational potential energy is equal to the ...

Q: A car has the same kinetic energy when traveling north as when it turns around and travels south. Is...

A: Kinetic energy is a scalar quantity which does not depend upon the direction therefore it will be th...

Q: A transformer has input of 6V and output of 36V , if the input is changed to 12V ,show that the outp...

A:

Q: Is it an inward force or an outward force that is exerted on the clothes during the spin cycle of an...

A:

Q: I need help with this Hw Problem.

A:

Q: At one atmosphere pressure, pure water ice melts at 0.000 °C. At 16.0 atm, the melting point is -0.1...

A: Given information: Here, T0 and T1 are the melting points at pressure P0­ and P1 respectively. And,...

Q: Why does the Sun look reddish at sunrise and sunset but not at noon?

A:

Q: Yuri, a Russian weightlifter, is able to lift 260 kg 2.10 m in 2.20 s. What is his power output?

A: Calculate the work done by the weight lifter.

Q: A 250 mW vertically polarized laser beam passes through a polarizing filter whose axis is 39 degrees...

A:

Q: You and a flight attendant toss a ball back and forth in an airplane in flight. Does the KE of the b...

A:

Q: In terms of impulse and momentum, why is it important that helicopter blades deflect air downward?

A:

Q: An elastic collision occurs in one dimension, in which a 10 kg block traveling at 5 m/s collides wit...

A:

Q: When a rifle with a longer barrel is fired, the force of expanding gases acts on the bullet for a lo...

A: According to work energy theorem, change in kinetic energy of a system is equal to the work done on ...

Q: A heat engine exhausts its heat at 350∘∘ and has a Carnot efficiency of 39%. What exhaust temperatur...

A: The efficiency of the Carnot engine(Ƞ) is,  

Q: Assume that the circuit in Figure 5(a) is now placed in a uniform magnetic field under test. The ind...

A:

Q: Why are metals shiny?

A: The metals contains a large number of a free electron.

Q: A ball of mass m is attached to a string of length L. It is being swung in a vertical circle with en...

A: vt = velocity at top vb = velocity at bottom Tb  = tension at bottom Tt  = tension at top m = mass o...

Q: One way to produce a beam of polarized light with intensity I and polarization angle θ would be to p...

A: When unpolarized light pass through polarizer, its intensity reduces by half. It is given as,

Q: A proton moves through a uniform electric field given by vector E = 50.0 j hat V/m and a uniform mag...

A:

Q: An inefficient machine is said to “waste energy.” Does this mean that energy is actually lost? Expla...

A: Energy conservation law is a universal law. According to this, energy can be neither created nor des...

Q: (Figure 1) is the potential-energy diagram for a 500 g particle that is released from rest at A. Wha...

A:

Q: Adisa pulls a 35.0-N crate up a 4.00-m-long inclined plane at a constant velocity. If the plane is i...

A:  Potential energy is the product of weight and height of the block from the ground.  

Q: In unit-vector notation, what is the net torque about the origin on a flea located at coordinates (0...

A: The origin on a flea located at coordinates,

Q: In the figure, block 1 has mass m1 = 470 g, block 2 has mass m2 radius R = 5.4 cm. When released fro...

A:

Q: A plane electromagnetic wave of intensity 6.00 W/m^2, moving in the x direction, strikes a small poc...

A:

Q: A system in which only one particle can move has the potential energy shown in (Figure 1) . Suppose ...

A: (a) The formula for the force acting on a particle in terms of its potential energy is:

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

A: Assume that the bob of the pendulum is at a height H initially and the potential energy of the bob i...

Q: If the 3 moles of hydrogen at 3.0 Pa and 290 K had expanded freely from 10 L to 18 L. Calculate the ...

A:

Q: If a heat engine's efficiency is 30% and its work output is 2000J, how much thermal energy must have...

A: Efficiency of heat engine,

Q: I need help with this Hw Problem. Im having trouble understanding the concept.

A: Calculate the centrifugal force of the car:

Q: (a) Two microwave frequencies are authorized for use in microwave ovens, 875 and 2510 MHz. Calculate...

A: First frequency,

Q: A flywheel with a diameter of 0.611 m is rotating at an angular speed of 287 rev/min. (a) What is th...

A:

Q: What capacitance is required to store the energy of 15 kW · h at a potential difference of 1400 V? _...

A: Given information: The energy stored in the capacitor (U) = 15 kW.h = 15 ×3600 kJ = 54000 kJ The pot...

Q: I need help with this Hw Problem?

A:

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.