![(1) Suppose that the surface area of a pith ball is 2.06 X 104 m2. If each atom takes up about 1020 m2 on the surface of the pith ball, how many atoms are there on the entire surface? (Show your entire calculation) [1]](http://img.homeworklib.com/questions/a0db3990-6e26-11ea-9236-2914085d1cb4.png?x-oss-process=image/resize,w_560)
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(1) Suppose that the surface area of a pith ball is 2.06 X 104 m2. If...
A perfect emitter with a surface area of 1(104) m2 has a temperature of 10,000K. Calculate...
A perfect emitter with a surface area of 1(104) m2 has a temperature of 10,000K. Calculate its radiant energy in watts. Stefan-Boltzmann's constant is 5.67(10-8) J/(s-m2-K4
E=ΦreceivedA M=ΦemittedA where A is the area of the surface in square meters (m2). Both irradiance...
E=ΦreceivedA M=ΦemittedA where A is the area of the surface in square meters (m2). Both irradiance and emittance are measured over an entire hemisphere, providing the total energy arriving at (irradiance) or leaving (emittance) a surface over all possible angles. Question 15. A. How much radiant energy does a 100 W bulb emit in 10 seconds? Show your work. B. How many photons does it emit in in that same time frame? Show your work. C. What is the emittance...
A typical adult ear has a surface area of 2.16 x 103 m2. The sound intensity...
A typical adult ear has a surface area of 2.16 x 103 m2. The sound intensity during a normal conversation is about 3.91 x 10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? Centre cerca 09 2,40 the sound intensity during a normal conversation is about 3.91 * 10€ wym® at the listene's ea. Assume that the sound strikes the surface of the ear...
atoms a c= molecules i cacou atomas go 3x 1.15 x 1020 1903 mu lewe y...
atoms a c= molecules i cacou atomas go 3x 1.15 x 1020 1903 mu lewe y cacos 1.15 x 1020 - 3.45 x 1020 w many total atoms are in your signature? Show all of your work for full credit total atom= ca toto (1.158 1020 + 1.158 1020 + 3,45 x 1020) 5. 75 x 1020 4. How many times would you have to write your name to use 1.00 mol of calcium carbonate Page 9 atoms We were...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem ...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem omperature of 34°C is standing with bare skin in a room where the air is 22°C but the walls are 21°C. (ơ 5.67" 104 J / (sm"к"). There is a "dead ai lay ran around you next to your skin that acts as insulation. This dead-air layer is 5.0 mm thick. a) Draw b) What is the person's rate of...
A flat surface of area 2.60 m2 is rotated in a uniform electric field of magnitude...
A flat surface of area 2.60 m2 is rotated in a uniform electric field of magnitude E-5.90 x 105 N/C. (a) Determine the electric flux through this area when the electric field is perpendicular to the surface. The correct answer is not zero. N m2/C (b) Determine the electric flux through this area when the electric field is parallel to the surface. 15 34 Your response differs significantly from the correct answer. Rework your solution from the beginning and check...
-0.lx. Calculate the flux crossing surface of area 1 m2 with 37° to the x axis...
-0.lx. Calculate the flux crossing surface of area 1 m2 with 37° to the x axis and located at x=1 m if flux density given as D=100e uc/m2 452 x10-6 C 303 x10-6 C 361x10-60 272 x10-60 184 x10-6 C
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun....
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
A cell membrane has a surface area of 1.2 × 10−7 m2, a dielectric constant of...
A cell membrane has a surface area of 1.2 × 10−7 m2, a dielectric constant of 5.5, and a thickness of 7.1 nm. The potential difference across the membrane is 60 mV. Round youranswers to two significant figures. (a) What is the magnitude of the charge on each surface of the membrane? Q = pC (b) How many ions are on each surface of the membrane, assuming they are singly charged (|q| = e)? ___ × 10
Optical tweezers use light from a laser to move single atoms and molecules around. Suppose the...
Optical tweezers use light from a laser to move single atoms and
molecules around. Suppose the intensity of light from the tweezers
is 1000 W/m2, the same as the intensity of sunlight at
the surface of the Earth.
(a) What is the pressure on an atom if light from the tweezers
is totally absorbed?
Pa
(b) If this pressure were exerted on a helium atom, what would be
its acceleration? (The mass of a helium atom is 6.65 ✕
10−27...
A typical adult ear has a surface area of 2.16 x 103 m2. The sound intensity during a normal conversation is about 3.91 x 10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? Centre cerca 09 2,40 the sound intensity during a normal conversation is about 3.91 * 10€ wym® at the listene's ea. Assume that the sound strikes the surface of the ear...
atoms a c= molecules i cacou atomas go 3x 1.15 x 1020 1903 mu lewe y cacos 1.15 x 1020 - 3.45 x 1020 w many total atoms are in your signature? Show all of your work for full credit total atom= ca toto (1.158 1020 + 1.158 1020 + 3,45 x 1020) 5. 75 x 1020 4. How many times would you have to write your name to use 1.00 mol of calcium carbonate Page 9 atoms We were...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem omperature of 34°C is standing with bare skin in a room where the air is 22°C but the walls are 21°C. (ơ 5.67" 104 J / (sm"к"). There is a "dead ai lay ran around you next to your skin that acts as insulation. This dead-air layer is 5.0 mm thick. a) Draw b) What is the person's rate of...
A flat surface of area 2.60 m2 is rotated in a uniform electric field of magnitude E-5.90 x 105 N/C. (a) Determine the electric flux through this area when the electric field is perpendicular to the surface. The correct answer is not zero. N m2/C (b) Determine the electric flux through this area when the electric field is parallel to the surface. 15 34 Your response differs significantly from the correct answer. Rework your solution from the beginning and check...
-0.lx. Calculate the flux crossing surface of area 1 m2 with 37° to the x axis and located at x=1 m if flux density given as D=100e uc/m2 452 x10-6 C 303 x10-6 C 361x10-60 272 x10-60 184 x10-6 C
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
Optical tweezers use light from a laser to move single atoms and
molecules around. Suppose the intensity of light from the tweezers
is 1000 W/m2, the same as the intensity of sunlight at
the surface of the Earth.
(a) What is the pressure on an atom if light from the tweezers
is totally absorbed?
Pa
(b) If this pressure were exerted on a helium atom, what would be
its acceleration? (The mass of a helium atom is 6.65 ✕
10−27...
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