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A wheel consists of 20 thin spokes, each with mass 0.070kg , attached to a rim of mass 4.4kg and radius 0.85m. Find its rotational inertia.
What is the average speed of a rider on this Ferris wheel.
A plane leaves the airport in Galisto and flies 159km 68 degrees east of north and after that changes direction to fly 242km at 48 degrees south of east, after which it makes an immediate emergency landing in a pasture.
A 75-kg trqampoline artist jumps vertically upward from the top of a platform with a speed of 5.00 m/s. (a) how fast is he going as he lands on the trampoline 3.0m below? (b) If the trampoline behaves like a spring of spring constant 5.2 x 10^4 N/..
How do you establish the value of theta
A city employee wanted to measure the height of a tall tree. The employee stood 9.50 m from the base of the tree; and he saw that his line of sight made an angle of 65.2 degrees above the horizon,
Estimate the wavelength of the light.
You are driving home from school steadily at 94 for 120. It after that begins to rain and you slow to 60. You arrive home after driving two hours and 20 minutes. How far is your hometown from school.
Illustrate what is the intensity of the beam transmitted through the three sheets when 1 = 19.0°, 2 = 51.0° and 3 = 100.0° ?
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 485 newtons and is directed due west.
A loudspeaker of mass 21.0 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? suppose a lens-eye distance of 2cm.
An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50 r, compute the magnitude of the force between the two objects.
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