The evaporation of perspiration is the primary mechanism for cooling the human body. Estimate the amount of water you will lose when you bake in the sun on the beach for an hour. Use a value of 1000 W/m2 for the intensity of sunlight and note that the energy required to evaporate a liquid at a particular temperature is approximately equal to the sum of the energy required to raise its temperature to the boiling point and the latent heat of vaporization (determined at the boiling point).

Q: or moths to eat, a bat emits a chirp that lasts for 4.80 ms and then is silent while it listens for…

A: GivenTotal time taken=4.8 ms=4.8×10-3 s Bat is flying toward the moth at a speed of 4.40 m/sMoth is…

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…

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Q: The intensity of solar radiation at the top of Earth’s atmosphereis 1 370 W/m3. Assuming 60% of the…

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Q: (a) Calculate the rate in watts at which heat transfer through radiation occurs (almost entirely in…

A:

Q: About 5% of the power of a 100 W light bulb is converted to visible radiation. What is the average…

A: Power output of light = 0.05*100 = 5 Watt

Q: The light at the Earth from a certain star has an intensity of about 76×10-8W/m2. If the star emits…

A:

Q: While hunting for moths to eat, a bat emits a chirp that lasts for 2.10 ms and then is silent while…

A: Given data: total time for bat to chirp is t = 2.10 ms speed for bat vb = 4.40 m/s speed for moth vm…

Q: The Intensity of solar radiation at the Earth's orbit is 1370 W/m2. However, because the atmosphere,…

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Q: If the Earth–Sun distance were doubled, the intensity of radiation from the Sun that reaches the…

A: The Earth-Sun distance were doubled, the intensity of radiation is inversely proportional to d2.…

Q: *59. ssm mmh A dish of lasagna is heing heated in a microwave oven. The ef- fective area of the…

A:

Q: The mean distance between the Earth and the Sun is 1.50×1011 m. The average intensity of solar…

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Q: Near the earth the intensity of radiation from the sun is 1.35 kW/m2. What volume of space in this…

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Q: The intensity of sunlight on earth is about 100 mW/cm (that's milli-Watts per cm squared). If you…

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Q: (a) What is the intensity in W/m2 of a laser beam used to burn away cancerous tissue that, when…

A: Given information: Here, Ed is the laser’s energy, d is the diameter of the circular spot, t is the…

Q: A solar car has a roof dimensions of 149cm x 81cm for solar cells. Calculate the electrical power…

A: Dimensions = 149 cm * 81 cm  100 cm = 1 m  Therefore, area of roof = 1.49 m * 0.81 m = 1.2069 m2…

Q: A space probe which is a distance of 1.9×1010 m from a star measures the total intensity of…

A: Part A) The expression for the total average power output is,

Q: You are designing a solar car with a total roof area for solar cells of 6.4m². Calculate the…

A:

Q: One insulated conductor from a household extension cord has a mass per length of 19.0 g/m. A section…

A: The speed of a simple standing wave can be given as The speed can also be given as Thus,

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: 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: The distance between Planet X and a star is 1.8 x 1011 m. At the surface of Planet X, the average…

A:

Q: A space probe which is a distance of 2.6×1010 mm from a star measures the total intensity of…

A: Distance=2.6×10^10mm Intensity=5300W/m²

Q: a solar panel is a square 0.5m on a side and absorbs all the light that hits it. It the panel has a…

A: Force required = weight of solar panel Force required(F) = mg  Here, F = required force  m = mass of…

Q: Medical Application - (a) What is the intensity in W/m2 of a laser beam used to burn away cancerous…

A: (a)  The intensity of a laser beam is given as, Here, P and A represent the power output and the…

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

A:

Q: Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 370 W/m2. (a)…

A: (a) Write the formula for power in terms of intensity.

Q: Radiation from the sun reaching the earth has an intensity of 1.4 kW/m^2. a) What is the total power…

A:

Q: (a) Calculate the rate in watts at which heat transfer through radiation occurs (almost entirely in…

A: a) The rate which heat transfer through radiation is, Therefore,

Q: A solar car has a roof dimensions of 144cm x 110cm for solar cells. Calculate the electrical power…

A: Given: Dimension of solar roof 144cm x 110cm                 Area of solar roof = 114 cm x 110 cm…

Q: A garage is illuminated by a single incandescent lightbulb dangling from a wire. If the bulb…

A: Given data The power is, P=50.0 W The distance is r = 1.00 m The power consumed is, n=5.00% Step 1…

Q: Electromagnetic radiation from the sun reaches the earth at a rate 1370W/m^2. The radius of the sun…

A:

Q: The electric field of a uniform plane wave propagating in a dielectric, non-conducting medium is…

A: Phase velocity is the velocity of the phase of wave. The velocity with which the wave moves is the…

Q: Suppose sunlight just outside Earth's atmosphere has an intensity of 1.76 kW/m2. Calculate (a) Em…

A: Data Given ,  Intensity of the sunlight ( I ) = 1.76 kw/m2 = 1.76 × 103 W/m2 Now , The intensity of…

Q: Light waves travel in a vacuum at a speed of 300 000 km/s. (a) The frequency of the longest visible…

A:

Q: The intensity of sunlight at the top of the earth’s atmosphere is approximately 1400 W/m2. Mars is…

A: The magnitude of intensity varies as the inverse of square distance to the source: I∝1r2 I=Kr2…

Q: While hunting for moths to eat, a bat emits a chirp that lasts for 2.50 ms and then is silent while…

A: Given total time =2.50ms and moth speed =4.4m/s  and temperature =10°C and speed of sound in air at…

Q: The intensity of electromagnetic waves from the sun is 1.4 kW/m2 just above the earth's atmosphere.…

A:

Q: (a)Calculate the rate in watts at which heat transfer through radiation occurs (almost entirely in…

A: Given data: The area of Earth's surface is A=4 m2. The emissivity is ε=0.95. The Earth surface…

Q: The Earth has a radius of 6.38×10^6m and is 1.50×10^11m from the sun. The intensity of sunlight at…

A: The relation between intensity and distance is as follows: