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Question: A convex spherical mirror has a focal length of 12 cm. If an object is placed 6 cm in front of it, the image position is:
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Suppose you are climbing up stairs, gaining 10 meters of height per minute. In order to do that, your body has to do some work, using energy, at a given rate. What is the power produced by your body? Ignore energy losses.
light from a helium - neon laser is shinedon a slit of width 0.02mm. Describe qualitatively the pattern of light seen on ascreen 1.0 meter away. and how would the pattern be different if the slit were 0.06mmwide instead of 0.02mm?
A woman of mass 60 kg runs at a speed of 5 m/s towards a carousel and jumps onto it at the very edge. what is the angular velocity of the carousel
a 28Kg rock approaches the foot of a hill with a speed of 15 m/s.This hill slopes upward at a constant angle of 40degrees above the horizontal. use energy conservation to find the maximum height the rock will reach
A circular loop lieswith its plane normal to a magnetic field given by B=(2.500- 0.0400t) T, Calculate the radius of the loop
What is the escape speed on a spherical asteroid whose radius is 585 km and whose gravitational acceleration at the surface is 2.5m/s2? How far from the surface will a particle go if it leaves the asteroid’s surface with a radial speed of 1000 m/s?
A 0.7 kg block of ice is sliding by you on a very slippery floor at 3.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.003 seconds.
A factory worker pushes a 28.7 crate a distance of 4.9 along a level floor at constant velocity by pushing downward at an angle of 29 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26 What magnitude of forc..
A coating is applied to a lens to minimize reflections. what wavelength is minimally reflected for normal incidence in the lowest order
find at least five internet or magazine articlesadvertisements which depict an exercise or health myth. why do you
Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. Calculate the speed of charge B when it has reached a distance of 3.68 cm away from charge A
a simple pendulum has a length l of 1 m. in free vibration the amplitude of its swings falls off by a factor e in 50
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