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A gyroscope has a radius of 3 cm. Using a string wrapped around its central axis, you apply a constant torque for 3 seconds, which results in an angular acceleration of 5 rad/s^2 during that time. Assuming it started at rest, what is the gyroscope's instantaneous angular velocity after 3 seconds?
The moon has a period of 27.3 days and has a mean distance of 3.90 x 105 km from the center of Earth. Discover the period of an artificial satellite that is in orbit 6.70 x 103 km from the center of Earth.
A steam pipe is to transport 200 lbmls of steam at 200 psia and 600 F. Calculate the minimum diameter this pipe can have so that the steam velocity does exceed 59 ft/s.
a river is flowing at 4 ms from north to south and is 100 m wide. if it takes a boat 200 seconds to directly cross the
The figure shows a closed Gaussian surface in the shape of a cubeof edge length 2.7 m, with one cornerat x1 = 4.6m,y1 = 4.5 m. Thecube lies in a region where the electric field vector is givenby = -2.8 -4.2 y2 +2.2 N/C, with y in meters. What is the ..
A thin ray of light enters a container ofroom-temperature liquid from the air. Its angle of incidence is49°. What is the index of refraction of the liquid
Two long parallel wires are shown in the figure below. They are separated by a distance L = 17.0 cm. The bottom wire carries a current of 7.10 A in the direction shown. The current of the upper wire is directed in the opposite direction.
Two small objects, A and B, are fixed in place and separated by 2.97 cm in a vacuum. Object A has a charge of +2.16 microC, How many electrons must be removed from object A
A uniform 20.0 kg chain 2.00 m long supports a 55.0 kg chandelier in a large public building. Find the tension in the bottom link of the chain
15 mol of an ideal gas expands isothermally at 373 K to 12.5 its inital volume. Find the heat flow into the system
suppose the resistance between the hands is due entirely to the skin. what is the resistivity of skin
A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s^2 for 14.0 s. What is the total distance travelled
How long will it take until the sun has used up all the hydrogen atoms in the core (the central 10%)? That is, what is the main-sequence lifetime of the sun and compare the lifetime of the sun to the current age.
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