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A girl forgets to put on her glasses and finds that she needs to hold a book 12 cm from her eyes in order to clearly see the print.
(a) If she were to hold the book 58 cm away, what type of corrective lens would she need to use to clearly see the print?
(b) What is the focal length of the lens?
a wooden rod of negligible mass and length 84.0 cm is pivoted about a horizontal axis through its center. a white rat
a 92 kg astronaut and a 1200 kg satellite are at rest relative to the space shuttle. the astronaut pushes on the satellite, obtain the initial distance from the shuttle to the astronaut
A certain slide projector has a 100 mm focal length lens. (Just need part B and C), If the slide is 24.0 by 36.0 mm, what is the image's smaller dimension in meters
A 160 kilogram object and a 460 kilogram object are separated by 4.70 meter. Obtain the magnitude of the net gravitational force exerted by these objects on a 30 kilogram object located midway between them
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec2 acquires an angular velocity of 5.00 rad/sec.
The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of the springs attached to the axles. Each of the identical springs attached to the front axle supports 341 kg.
A 5 kg rock is dropped from rest down a vertical mine shaft. How long does it take for the rock to reach a depth of 79 m? Neglect air resistance.
A 5.0-cm-diameter coil has 20 turns and a resistanceof 0.50 ohms. A magnetic field perpendicular to the coil is B =0.02t + 0.010t^2, where B is in tesla and tis in seconds. Find an expression for the induced current I(t)as a function of time.
A rear wheel on a Formula 1 racing car has a mass of 3.2 kg and a radius of 0.42m. A mechanic is rolling the wheel towards a step at the back of the workshop. Decide: The minimum horizontal force (F) needed to be applied through the axle (center) of ..
Suppose the minimum uncertainty in the position of a particleis equal to its de Broglie wavelength. what is the minimum uncertainty in its speed
Two particles are fixed on an x axis. Particle 1 of charge 51.50 μC is located at x = -33.2 cm; particle 2 of charge Q is located at x = 10.10 cm. Particle 3 of charge magnitude 37.7 μC is released from rest on the y axis at y = 11.30 cm.
Find the final velocity of the combined mass after an in elastic collision 500g at 4m/s toward 300g 2 m/s and the change of KE
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