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8 to Islom tall Plano - connex leus of crown glass 58.74 w Radius of curved...
A small logo is embedded in a thick block of crown glass (n = 1.52), 3.20...
A small logo is embedded in a thick block of crown glass (n = 1.52), 3.20 cm beneath the top surface of the glass. The block is put under water, so there is 1.80 cm of water above the top surface of the block. The logo is viewed from directly above by an observer in air. How far beneath the top surface of the water does the logo appear to be? cm
You need to make a plano-concave lens with a focal length of +15 cm out of...
You need to make a plano-concave lens with a focal length of +15 cm out of glass with an index of 1.60. Plano-concave means that one side is flat. You then form an image with the lens of an object that is 1 cm tall and that is 25 cm from the lens. (a) Find the radius of curvature of the curved side of the lens. (b) How far is the image formed from the lens? (e) How big is...
6. A solid glass sphere with a radius of 5.00 cm and index of refraction of...
6. A solid glass sphere with a radius of 5.00 cm and index of refraction of 1.52 has a small coin embedded 3.00 cm from the front surface of the sphere. For the viewer looking at the coin through the glass, at what distance from the front surface of the glass does the coin’s image appear to be located?
8. A glass of iced tea is a cylinder that is 0.20 m tall and has...
8. A glass of iced tea is a cylinder that is 0.20 m tall and has a diameter of 0.06 m. The iced tea is at a temperature of 0 °C. The room is at a temperature of 24.4 °C. Calculate the net rate of heat flow by radiation through the sides of the glass.
7. An inverted cone is 20 cm tall, has an opening radius of 8 cm, and...
7. An inverted cone is 20 cm tall, has an opening radius of 8 cm, and was initially full of water. The water now drains from the cone at the constant rate of 15 cm each second. The water's surface level falls as a result. At what rate is the water level falling when the water is halfway down the cone?
An enclosed tank has a curved glass window with the radius of r= 2 m, that...
An enclosed tank has a curved glass window with the radius of r= 2 m, that is hinged at point A as shown in the figure. At the bottom (point B) there is a smooth block that maintains a horizontal reaction force, restraining the window from opening. The tank has a width of b 2 m into the paper) and the height of water in it is: h-5 m. Pressure of the trapped air in the tank is 50 kPa...
plz? help sir .......... A transparent glass hemisphere with radius R and mass m has an...
plz? help sir
..........
A transparent glass hemisphere with radius R and mass m has an index of refraction n. In the medium outside the hemisphere, the index of refraction is equal to one. A parallel beam of monochromatic laser light is incident uniformly and normally onto the central portion of its planar surface, as shown in Figure 3. The acceleration of gravity g is vertically downwards. The radius 8 of the circular cross-section of the laser beam is much...
Question 2 A typical FM radio wave has a wavelength of 3.0 m. What is the...
Question 2 A typical FM radio wave has a wavelength of 3.0 m. What is the frequency of the wave? O a. 100.0 MHZ b. 1000.0 Hz O c. 10.0 KHz O d. 100.0 KHz Moving to another question will save this response. Question 5 of 14 Question 5 3 points Save Answer What is the intensity of an electromagnetic wave with a peak electric field strength of 100.0 V/m and magnetic field strength of 2.0 x 10^-6 T? a....
Question 8 In the figure a thin glass rod forms a semicircle of radius r 1.67...
Question 8 In the figure a thin glass rod forms a semicircle of radius r 1.67 cm. Charge is uniformly distributed along the rod, with q 1.38 pC in the upper half and -q-1.38 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? Number the tolerance is +/-5% Click if you would like to Show Worlv/s Units N/C or V/m ion: Open Show Work V/m-s N/C.m Question 9 Figure...
Infrared radiation exposures of 200 W/cm2 at 1090 nm for 8 seconds with a continuous-wave glass fibre laser is demo...
Infrared radiation exposures of 200 W/cm2 at 1090 nm for 8 seconds with a continuous-wave glass fibre laser is demonstrated to induce cataract in less than a week. Whereas a similar experiment using 96 W/cm2 for 1 hour has shown no cataract after 1 week. If the first infrared laser intensity was measured at 300 mm, at what distance is considered safe for not developing cataract after 1 week? (4 marks)
Infrared radiation exposures of 200 W/cm2 at 1090 nm...
You need to make a plano-concave lens with a focal length of +15 cm out of glass with an index of 1.60. Plano-concave means that one side is flat. You then form an image with the lens of an object that is 1 cm tall and that is 25 cm from the lens. (a) Find the radius of curvature of the curved side of the lens. (b) How far is the image formed from the lens? (e) How big is...
8. A glass of iced tea is a cylinder that is 0.20 m tall and has a diameter of 0.06 m. The iced tea is at a temperature of 0 °C. The room is at a temperature of 24.4 °C. Calculate the net rate of heat flow by radiation through the sides of the glass.
7. An inverted cone is 20 cm tall, has an opening radius of 8 cm, and was initially full of water. The water now drains from the cone at the constant rate of 15 cm each second. The water's surface level falls as a result. At what rate is the water level falling when the water is halfway down the cone?
An enclosed tank has a curved glass window with the radius of r= 2 m, that is hinged at point A as shown in the figure. At the bottom (point B) there is a smooth block that maintains a horizontal reaction force, restraining the window from opening. The tank has a width of b 2 m into the paper) and the height of water in it is: h-5 m. Pressure of the trapped air in the tank is 50 kPa...
plz? help sir
..........
A transparent glass hemisphere with radius R and mass m has an index of refraction n. In the medium outside the hemisphere, the index of refraction is equal to one. A parallel beam of monochromatic laser light is incident uniformly and normally onto the central portion of its planar surface, as shown in Figure 3. The acceleration of gravity g is vertically downwards. The radius 8 of the circular cross-section of the laser beam is much...
Question 2 A typical FM radio wave has a wavelength of 3.0 m. What is the frequency of the wave? O a. 100.0 MHZ b. 1000.0 Hz O c. 10.0 KHz O d. 100.0 KHz Moving to another question will save this response. Question 5 of 14 Question 5 3 points Save Answer What is the intensity of an electromagnetic wave with a peak electric field strength of 100.0 V/m and magnetic field strength of 2.0 x 10^-6 T? a....
Question 8 In the figure a thin glass rod forms a semicircle of radius r 1.67 cm. Charge is uniformly distributed along the rod, with q 1.38 pC in the upper half and -q-1.38 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? Number the tolerance is +/-5% Click if you would like to Show Worlv/s Units N/C or V/m ion: Open Show Work V/m-s N/C.m Question 9 Figure...
Infrared radiation exposures of 200 W/cm2 at 1090 nm for 8 seconds with a continuous-wave glass fibre laser is demonstrated to induce cataract in less than a week. Whereas a similar experiment using 96 W/cm2 for 1 hour has shown no cataract after 1 week. If the first infrared laser intensity was measured at 300 mm, at what distance is considered safe for not developing cataract after 1 week? (4 marks)
Infrared radiation exposures of 200 W/cm2 at 1090 nm...
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