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35-mm camera has a single thin lens having a 50.0-mm focal length. A woman 1.7 m tall stands 10.0 m in front of the camera, (a) Show that the lens-film distance must be 50.3 mm.
A 0.410-kg blue bead slides on a frictionless, curved wire, Find the maximum height the green bead rises
The velocity of a ball changes from m/s to m/s in 0.02 s, due to the gravitational attraction of the Earth and to air resistance. What is the rate of change of momentum of the ball
Consider a merry-go-round that has the form of a disc with radius 5.4 m and mass 160 kg. If five children, what is the total moment of inertia
If the sprinter from the previous problem accelerates at that rate for 20 m, what will be his time for the race
A playground is on the flat roof of a city school, 5.4 m above the street below (see figure). The vertical wall of the building is h = 6.90 m high, Find the vertical distance by which the ball clears the wall.
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
A proton having an initial velocity of 18.1i hat bold Mm/s enters a uniform magnetic field of magnitude 0.300 T with a direction perpendicular to the proton's velocity, Determine the distance the proton traveled in the field
A proton is confined within an atomic nucleus of diameter 4.1 fm. Estimate the smallest range of speeds
If the pressure of the 1.2-cm3 volume is reduced to 1.2 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
There are two coherent microwave sources in the x-y plane. These sources are emitting in phase at a wavelength of ? = 1.00 cm. where is the first source located on the y axis
A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
What is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is 1.37?
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