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Bailey has a eyeglasses with a prescription of -4.00D. While wearing these glasses so that the lenses sit 2.00 cm i...
A nearsighted person has a far point of 21.5cm and is prescribed contact lenses to correct her vision
A nearsighted person has a far point of 21.5cm and is prescribed contact lenses to correct her vision. What lens strength (a.k.a., lens power), in Diopters, should be prescribed? Give your answer using the usual convention of positive values for converging lenses and negative values for diverging lenses. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 146, 5.23e-8
A farsighted man uses eyeglasses with a refractive power of 2.10 diopters. Wearing the glasses 0.030...
A farsighted man uses eyeglasses with a refractive power of 2.10 diopters. Wearing the glasses 0.030 m from his eyes, he is able to read books held no closer than 0.270 m from his eyes. He would like a prescription for contact lenses to serve the same purpose. What is the correct contact lens prescription, in diopters? I keep getting 1.637 but now I believe the answer is 1.75768. Is 1.75768 correct?
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer each part The figure below shows the overall acceleration vector for a particle moving clockwise in a circle of radius r = 1.25m at a certain instant in time. The magnitude of the acceleration vector is a 25.3m/s2 Image size: sML Max 30.0 (1 points) Part a At that instant, find the tangential acceleration of the particle. Please enter a numerical answer below. Accepted...
A physicist can see distant things clearly when wearing -2.00-diopter eyeglasses. Each lens rests 1.55 cm...
A physicist can see distant things clearly when wearing -2.00-diopter eyeglasses. Each lens rests 1.55 cm in front of the eye. (a) What focal length (in cm) describes the lenses? (b) Determine the far point (in cm) for this physicist's eyes. (c) is the physicist nearsighted or farsighted? nearsighted farsighted (d) The physicist decides to replace eyeglasses with contact lenses, one of which rests directly on each eye. What would the contact lens power be (in diopters) in order to...
X-rays with an energy of 163 keV undergo Compton scattering with a target. If the scattered...
X-rays with an energy of 163 keV undergo Compton scattering with a target. If the scattered X-rays are detected at 28.9° relative to the incident X-rays, what is the wavelength of the scattered photon? Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here x10-12 m
Hi I was wondering if I could get help with these two questions. Thank you ^_^...
Hi I was wondering if I could get help with these two questions.
Thank you ^_^
Question 2 The hammer throw event in track and field involves spinning a heavy ball attached to a strong wire in a circle, then releasing it at just the right moment in the throw, and at the right angle, to maximize its trajectory away from the starting point. If the hammer thrower shown below is spinning at an angular rate of 3.47 revolutions per...
(#280043) (Electric Potential) A1.00 cm diameter plastic sphere, used in a static electricity demonstration, has a...
(#280043) (Electric Potential) A1.00 cm diameter plastic sphere, used in a static electricity demonstration, has a charge of 48.7 PC uniformly distributed on its surface. What is the potential near its surface? Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, 2, 106, 5.23e-8 Enter answer here CHECK ANSWER
Question4 (#673726) Two Lens System) An object is placed 188 cm to the left of a...
Question4 (#673726) Two Lens System) An object is placed 188 cm to the left of a positive lens of focal length +150 cm. Anegative lens, of focal length 100 cm is placed to the right of the first lens with a separation of 122 cm. Calculate the position of the final image relative to the second lens. (Report a positive number if the image is to the right of the second lens, and a negative number if it is to...
PLEASE SHOW WORK! :) (1 points) Question 6 A single-turn circular loop of wire of radius...
PLEASE SHOW WORK! :)
(1 points) Question 6 A single-turn circular loop of wire of radius 5.0 cm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.0516-s time interval, the magnitude of the field increases uniformly from 200 to 300 mT. Determine the magnitude of the emf induced in the loop. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here 0.151...
PLEASE SHOW WORK! The current in a long solenoid of radius 3 cm and 471 turns...
PLEASE SHOW WORK!
The current in a long solenoid of radius 3 cm and 471 turns per meter is varied with time at a rate of 2 A/s. A circular loop of wire of radius 5 cm and resistance 2 1 surrounds the solenoid. Find the electrical current induced in the loop in microamperes. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 126, 5.23e-8 Enter answer here 0.533 ☺ uA...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer each part The figure below shows the overall acceleration vector for a particle moving clockwise in a circle of radius r = 1.25m at a certain instant in time. The magnitude of the acceleration vector is a 25.3m/s2 Image size: sML Max 30.0 (1 points) Part a At that instant, find the tangential acceleration of the particle. Please enter a numerical answer below. Accepted...
A physicist can see distant things clearly when wearing -2.00-diopter eyeglasses. Each lens rests 1.55 cm in front of the eye. (a) What focal length (in cm) describes the lenses? (b) Determine the far point (in cm) for this physicist's eyes. (c) is the physicist nearsighted or farsighted? nearsighted farsighted (d) The physicist decides to replace eyeglasses with contact lenses, one of which rests directly on each eye. What would the contact lens power be (in diopters) in order to...
X-rays with an energy of 163 keV undergo Compton scattering with a target. If the scattered X-rays are detected at 28.9° relative to the incident X-rays, what is the wavelength of the scattered photon? Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here x10-12 m
Hi I was wondering if I could get help with these two questions.
Thank you ^_^
Question 2 The hammer throw event in track and field involves spinning a heavy ball attached to a strong wire in a circle, then releasing it at just the right moment in the throw, and at the right angle, to maximize its trajectory away from the starting point. If the hammer thrower shown below is spinning at an angular rate of 3.47 revolutions per...
(#280043) (Electric Potential) A1.00 cm diameter plastic sphere, used in a static electricity demonstration, has a charge of 48.7 PC uniformly distributed on its surface. What is the potential near its surface? Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, 2, 106, 5.23e-8 Enter answer here CHECK ANSWER
Question4 (#673726) Two Lens System) An object is placed 188 cm to the left of a positive lens of focal length +150 cm. Anegative lens, of focal length 100 cm is placed to the right of the first lens with a separation of 122 cm. Calculate the position of the final image relative to the second lens. (Report a positive number if the image is to the right of the second lens, and a negative number if it is to...
PLEASE SHOW WORK! :)
(1 points) Question 6 A single-turn circular loop of wire of radius 5.0 cm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.0516-s time interval, the magnitude of the field increases uniformly from 200 to 300 mT. Determine the magnitude of the emf induced in the loop. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here 0.151...
PLEASE SHOW WORK!
The current in a long solenoid of radius 3 cm and 471 turns per meter is varied with time at a rate of 2 A/s. A circular loop of wire of radius 5 cm and resistance 2 1 surrounds the solenoid. Find the electrical current induced in the loop in microamperes. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 126, 5.23e-8 Enter answer here 0.533 ☺ uA...
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