The total power consumption by all humans on earth is approximately 1013 W. Let’s compare this to the power of incoming solar radiation. The intensity of radiation from the sun at the top of the atmosphere is 1380 W/m2. The earth’s radius is 6.37 × 106 m.a. What is the total solar power received by the earth?b. By what factor does this exceed the total human power consumption?

Q: The intensity of the Sun's radiation that reaches a particular point on Earth's atmosphere is 1.06…

A:

Q: (c) Repeat both parts of this problem in the situation where twice this length of nylon rope is…

A: Mass = 84 kg Force constant,k = 1.58 × 104N/m

Q: The Earth has a radius of 6.38 x 106 m and is 1.50 x 1011 m from the Sun. The intensity of sunlight…

A:

Q: A police car is moving at a speed of 8.94 m/s, its siren emits a sinu￾ soidal wave with frequency…

A: velocity of source of sound (police car)= vs = 8.94 m/s frequency f =500 HZ temperature t=24 degree…

Q: a) Compute the wavelength in air of ultrasound with a frequency of 44 kHz if the speed of sound is…

A: Part A. use the following relation v=fλ here v is the speed of ultrasound wave f is the frequency λ…

Q: What is the velocity of a wave of any kind that has  a frequency 199 Hz and a wavelength 1 meters?…

A: Given data: Frequency, f= 199Hz                    Wavelength, λ= 1m    As we know, The velocity of…

Q: At a recent rock concert, a dB meter registered 118 dB when placed 1.60 m in front of a loudspeaker…

A: (a)   Calculate the intensity of the sound of the loudspeakers for 118 dB as below,

Q: At high frequencies, the value of the propagation constant (y) is approximately : * y = (R + j @ L )…

A: Propagation Constant (γ)=α+Iβ where α is attenuation Constant and β is phase constant

Q: Energy from the Sun arrives at the top of the Earth’s atmosphere with an intensity of 1.30 kW/m2 .…

A: The intensity is given by, I=PA Here, P is the power and A is the area. The power is given by, P=Et…

Q: kWh is short for kW⋅hr. What variable does the kWh describe? A. Power (P) B.Time (t) C.Intensity…

A: Given here, kWh is short for kW.hr  and asked what variable does the kWh describe.

Q: Energy from the Sun arrives at the top of the Earth’s atmosphere with an intensity of 1.30 kW/m2.…

A: Given:   Intensity of light, I = 1.30 kW/m2 Energy, E = 1.8×109 J Area, A = 1.00 m2

Q: (a) A photovoltaic array of (solar cells) is 10.0% efficient in gathering solar energy and…

A:

Q: A laser beam has intensity I0.a. What is the intensity, in terms of I0, if a lens focuses the laser…

A:

Q: A transverse traveling wave on a taut wire has an amplitude of 0.200 mm and a frequency of 500 Hz.…

A:

Q: Engineering Application - (a) A photovoltaic array of (solar cells) is 10.0% efficient in gathering…

A: Given Data: The efficiency of array is, e = 10.00%. The average intensity of sunlight is, I=700…

Q: A police car is moving at a speed of 8.94 m/s, its siren emits a sinu- soidal wave with frequency…

A:

Q: (a) At what location will the resultant of the two pulses have minimum amplitude? cm (b) At what…

A:

Q: The Sun radiates energy at a rate of 3.86x 1026 w. Its radius is 7.0x 10° m. If the distance from…

A: The radiation intensity is defined as the amount of energy emitted per unit solid angle by per unit…

Q: a. What is the frequency of blue light that has a wavelength of 450 nm?b. What is the frequency of…

A:

Q: The intensity of an earthquake wave travelling through the Earth and detected 100 km from the source…

A:

Q: (a) A French submarine and an American submarine move towards each other during maneuvers in…

A: Given information: The velocity of the french submarine, vf=55 km/h The velocity of the US…

Q: (a) A laboratory experiment produced a wave that traveled along the +x axis, and oscillated in the…

A:

Q: A carbon-dioxide laser emits infrared light with a wavelength of 10.6 μm.a. What is the length of a…

A: m=Mode=100000λ=Wavelength=10.6 μmc=Speed of light=3×108 m/s

Q: A train is traveling at 12.3 m/s as it approaches a tunnel in the smooth, vertical face of a rock…

A: It is given that,  v=12.3 m/svs=343 m/sf=325 Hz

Q: En a solar system far far away, the sun's intensity is 100 W/m² for a planet located a distance R…

A: Comment: We'll answer the first question since the exact one wasn't specified. Please submit a new…

Q: An observer is riding a bike with a speed of 5 m/s. The ice cream van emitting a sound with a…

A: Given: The observer is riding a bike with a speed of vo=5 m/s, The ice cream van emitting a sound…

Q: 17. A 150 W light bulb emits radiation waves spreading out equally in all directions. What is the…

A:

Q: At rest, a car’s horn sounds at a frequency of 550Hz. When the horn is sounded, while the car is…

A: f0 = 550 Hz Speed of cyclist , V = 8.5 m/s frequency overloads ,  λ = 575 Hz  To find = a) Speed of…

Q: A) If the amplitude in a sound wave is tripled, by what factor does the intensity of the wave…

A:

Q: A.)A wave has a speed of 260.0 m/s and a wavelength of 5.2 m. What is the frequency of the wave?…

A: Given data: Wave speed (v) = 260.0 m/s Wavelength (λ) = 5.2 m Required: The frequency (f) and period…

Q: The acoustic pressure radiated from a spherical source is measured 2 m away from the center of the…

A:

Q: The intensity of sunlight that reaches Earth’s atmosphere is 1348 W/m2. What is the intensity of the…

A:

Q: A room is at standard 20 cels. a) What wavelength does a 1.11 million Hz ultrasound passes through…

A: Frequency = 1.11million Hz c = 1540 m/s

Q: d) What is the highest frequency of the standing wave? e) What is the wavelength associated with the…

A: (d) The formula for the frequency is: The change in the resonant frequency will be: On further…

Q: Under favorable conditions, the human eye can detect light waves with intensities as low as 2.50 ×…

A: Given data: Intensity of the light waves, I=2.50×10-12 W/m2 Diameter of the pupil, d=8.20…

Q: m 6. As you do your regular morning walk at1.4 with an average room temperature, you can km hr…

A:

Q: What frequency is received by the observer "B" moving at 22 km/h away from a firetruck at rest which…

A: vo=Velocity of observer=22 km/h=223.6=6.11 m/svs=Velocity of the siren=372 Hzv=Speed of sound in…

Q: c) The intensity of an earthquake wave travelling through the Earth and detected 100 km from the…

A:

Q: W An astronaut on the Moon wishes to measure the local value of g by timing pulses traveling down a…

A:

Q: A ski gondola is connected to the top of a hill by a steel cable of length 660 m and diameter 1.5…

A: The speed of the pulse is calculated by using the formula v=Lt , where L=660 m is the length of the…

Q: What mathematical relationship exists between the wave speed and and the tension of the medium…

A: From graph, The trend line is  y = 99.97x0.5 where y is wave speed in cm/s and x is tension in N.

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.