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A stamp collector is viewing a stamp with a magnifying glass held next to her eye. Her near point is 25 cm from her eye.
(a) What is the refractive power of a magnifying glass that has an angular magnification of 5.8 when the image of the stamp is located at the near point?
(b) What is the angular magnification when the image of the stamp is 36 cm from the eye?
A car with a mass of 950 kg is moving to the right with a constant speed of 1.69 m/s, What is the total force on the car if it is moving to the left
Two cars of collide in a glancing collision and stick together. Before the colli- sion the first car (mass of 500 kg) is moving with velocity 25 m/s at an angle of 30%u25E6 North of East, Determine the momentum of each car in a suitable Cartesian c..
A man pushes a lawn mower on a level lawn with a force of 187 N. If 51 percent of the force is directed horizontally, how much work is completed by the man in pushing the mower 7.0 m.
A useful model of a water molecule is sketched in the figure below, with point charges of 5.2 10-20 C at the H sites, What is the total electric potential energy of this model of a water molecule
A man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at launch
Presume that you loft the ball with the initial speed of v = 17.6m/s, at an angle of θ = 50.7° above the horizontal. At this instant your opponent is d = 11.19m away from the ball. He begins moving away from you 0.35s later, hoping to reach the ba..
How much energy must be added to a bowl of 125 popcorn kernels in order for them to reach a popping temperature of 175celsious? assume that their initial temperature is 21 celsious, that specific heat capacity of popcorn is 1650 j/kgcelsious, and ..
Alberta is going to have dinner at her grandmother's house, but she is running a bit behind schedule. What is the slowest speed at which she could drive
Our apparent weight is actually judged not by the force of gravity pulling on us, By what percent will your apparent weight change if you were to travel from the north pole to the equator
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.887 rad/s. Calculate the total angular momentum of the system
A 2000kg car traveling at a speed of 12m/s skids to a halt on wet concrete where ?k = 0.50. How long are the skid marks
A laser beam is incident on two slits with a separation of 0.230 mm, and a screen is placed 5.10 m from the slits. what is the wavelength of the laser light
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