A parabolic satellite dish is somewhat bowl-shaped, but the incoming signal is captured across its circular cross-section. A parabolic satellite dish with radius, R = 1.5 m, picks up a TV signal with a peak electric field strength of 74 mV/m. (a) What is the average intensity of the incoming signal? W/m² (b) What is the average (total) power received by the satellite dish? W
Q: An AM radio transmitter broadcasts 46.0 kW of power uniformly in all directions. Assuming all of the…
A:
Q: At 2.1 km from the transmitter, the peak electric field of a radio wave is 350 mV/m. A. What is the…
A:
Q: Consult Multiple-Concept Example 5 to review the concepts on which this problem depends. A light…
A: Given:- Average emitted power = 150 W Distance from the bulb r= 4 m Find:- (a) the average…
Q: A dish antenna having a diameter of 16.0 m receives (at normal incidence) a radio signal from a…
A:
Q: Determine the radiation pressure and energy density of sunlight on Earth, assuming an intensity of…
A:
Q: A community plans to build a facility to convert solar radiation to electrical power. The community…
A: Given, Required power = 2.6 MW Efficiency = 30% Intensity of sunlight = 1200W/m2 We need to…
Q: In Figure (1), a 3.50 g bullet is fired horizontally at two blocks at rest on a frictionless table.…
A: The 3.5 g bullet is moving horizontally towards two blocks kept at rest. The bullet first penetrates…
Q: At some instant and location, the electric field associated with an electromagnetic wave in vacuum…
A:
Q: A 155-turn flat coil of wire, 32.5 cm in diameter, is acting as an antenna for FM radio at a…
A: a)Write the equation for intensity
Q: You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place…
A: Given, Power of light bulb is 120 W and light radiates from the lamp uniformaly of 7.3 % of their…
Q: S X 5. A high energy pulsed laser emits 3.00 nano second-long pulse of average power 1.60 x 10¹1 W.…
A:
Q: During normal beating, the heart creates a maximum 4.2 mV potential across 0.295 m of a person's…
A:
Q: A small spaceship cruises the solar system using an ideal, square-absorbing solar sail with side…
A: Given:The side length of solar sail L =1000mThe intensity of radiation near the earth I = 1300…
Q: A high-energy pulsed laser emits a 1.1-ns-long pulse of average power 1.5×1011 W. The beam is nearly…
A: Time Power Radius Energy rms value of electric field
Q: Consult Multiple-Concept Example 5 to review the concepts on which this problem depends. A light…
A: Average emitted power of the light bulb is P=150 W Distance from the bulb is r=6 m Note: 1 W= 1J/s…
Q: Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief…
A: Answer:- Given Maximum electric field strength (Eo) = 1.48 × 1011 v/m Time (t) = 1…
Q: Suppose the maximum safe intensity of microwaves for human exposure is taken to be 1.00 W/m2. a)…
A: The maximum safe intensity of microwaves for Human exposure is taken to be 1.00 W/m2
Q: An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area…
A: Power per unit area is given as s=12.0 W/m2 The surface is perfect absorber and the wave is normally…
Q: Problem 5: Electromagnetic radiation from a 5.2-mW laser is concentrated on a 0.85-mm2 area. Part…
A: Given data: Electromagnetic radiation from power P=5.2 mW=5.2×10-3 W The area A=0.85 mm2=0.85×10-6…
Q: Suppose a radio wave has a wavelength of 2.00 meters. What it the frequency of the radiation? It may…
A:
Q: What is the radiation pressure 1.2 m away from a 600 W lightbulb? Assume that the surface on which…
A: The surface absorbs all the radiation. Hence, the radiation pressure is given by: pr=Icwhere, I is…
Q: The amplitude of the B field of an EM wave is 2.4 x 10-7 T. The wave travels in free space ▼ Part A…
A: Since you have posted multiple subparts, we will provide the answer only to the first three subparts…
Q: During normal beating, the heart creates a maximum 4.20 mV potential across 0.320 m of a person's…
A: Given Information:- Maximum potential created by the heart is V=4.20mV=4.20mV×10-3 V1 mV=4.20×10-3 V…
Q: An unpolarized beam of light with intensity of 49.6 W/m2 passes through a polarizer with a vertical…
A: As we know that when Unpolarized light passes through any polarizer then its intensity becomes half.
Q: A 2.75 m diameter university communications satellite dish receives TV signals that have a maximum…
A:
Q: A microwave source produces pulses of 21.0 GHz radiation, with each pulse lasting 1.00 ns. A…
A:
Q: A typical laser used in introductory physics laborat beam of light about 1.90 mm in diameter. The…
A: Given: Diameter=1.90mm Average Power=0.930mW To find: Peak intensity
Q: Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00…
A: Given: The intensity is I=2 W/m2. The power is P=10 W. The speed of light is c=3X108 m/s. The…
Q: You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place…
A:
Q: A radio antenna broadcasts a 1.0 MHz radio wave with 22 kW of power. Assume that the radiation is…
A: Write the expression of the intensity of the wave, and solve for the intensity at a distance of 29…
Q: At some instant and location, the electric field associated with an electromagnetic wave in vacuum…
A:
Q: Assuming moving uniformly in all directions, a source of radio waves uses 15kW to send 2MHz. What is…
A:
Q: Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief…
A: Given Data : The maximum electric field of the elctromagnetic wave is given as E=1.25×1011 Vm The…
Q: f the RMS magnetic field strength of a sinusoidal plane EM wave is 0.368 millitesla, what is the…
A: Given: The RMS magnetic strength of the magnetic field is 0.368 mT.
Step by step
Solved in 3 steps with 2 images
- You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place lamp shades individually over a 120-W light bulb. Assume that the light radiates from the lamps uniformly and 9.5% of their power is converted to light. (a) What is the average intensity of the light at 1.6 m from the red (1 = 710 nm) lamp shade? W/m2 (b) Is the average intensity of the blue (1 = 480 nm) lamp shade at 1.8 m greater than, less than, or equal to the intensity calculated in part (a)? greater than less than O equal toOn its highest power setting, a certain microwave oven projects 0.75 kW of microwaves onto a 20 by 35 cm area. (a) What is the intensity in W/m2? W m² (b) Calculate the peak electric field strength Eo in these waves. V m (c) What is the peak magnetic field strength Bo? T Submit QuestionRadio waves and microwaves are used in therapy to provide “deep heating” of tissue because the waves penetrate beneath the surface of the body and deposit energy. We define the penetration depth as the depth at which the wave intensity has decreased to 37% of its value at the surface. The penetration depth is 15 cm for 27 MHz radio waves. For radio frequencies such as this, the penetration depth is proportional to √λ, the square root of the wavelength. What is the wavelength of 27 MHz radio waves?A. 11 m B. 9.0 m C. 0.011 m D. 0.009 m
- consider a bright star in our sky. assume its distance from earth is 38.3 light-year (ly) and its power output is 4.00 * 10^28 W. about 100 times that of the sun. one light-year is the distance traveled by light through a vacuum in one year. a. find the intensity of the starlight at the earth. b. find the power of the starlight at the earth intercepts ( the radius of earth is 6.38 * 10^6 m .)Suppose you have an electric field as a result of superposition of two waves given by Ē(z, t) = Eo cos(kz - wt) + Eo cos(kz + wt)â. a. Simplify Ē(z, t) as one term and find its associated magnetic field b. Find the instantaneous and time-averaged energy density.A 4.25 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.5 μV/m . (a) What is the intensity of this wave in W/m2? (b) What is the power received by the antenna in W? (c) If the orbiting satellite broadcasts uniformly over an area of 1.50 × 1013 m2 (a large fraction of North America), how much power does it radiate in W?
- An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 61.4 W/m², and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read ItAn AM radio transmitter broadcasts 54.0 kW of power uniformly in all directions. (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity (in W/m2) 26.0 km away? (Hint: Half the power will be spread over the area of a hemisphere.) W/m2 (b) What is the maximum electric field strength (in V/m) at this distance? V/m