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1. A thin, circular hoop with a radius of 0.32 m is hanging on a nail. Adam notices that the hoop is oscillating back and forth through small angles like a physical pendulum. The moment of inertia of the hoop for the rotational axis passing through the nail is I = 2mr2. What is the period of the hoop?
An object is placed 1.00 m. in front of a converging lens, of focal length 0.51 m., which is 2.00 m. in front of a plane mirror. How far from the lens is the final image located
A convex mirror is needed to produce an image that is seven-eighths the size of an object and located 28 cm behind the mirror. What focal length should be specified
A drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at ? = 48°. What is the refractive index of the liquid
A chair of weight 100 Newton lies atop a horizontal floor; the floor is not frictionless. Using Newton's laws, Find the magnitude of the normal force that the floor exerts on the chair
What mass (in grams) of steam at 100°C must be mixed with 377 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 58.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, ..
What is the power output in horsepower of an electric motor turning at 4550rev/min and developing a torque of 4.75N, Calculate the angular momentum of a solid uniform sphere
A ball is shot from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = (6.5 + 6.7) m/s, with horizontal and upward. What total horizontal distance does the ball travel
q1. an object is 14.4 cm from the surface of a reflective spherical christmas tree ornament 8.04 cm in diameter.what is
Determine the ratio of the intensity at an angle of 0.135 degree from the centerline to the intensity at the peak of the central maximum
A box of mass m = 3.50 kg is given a push down an inclined plane which makes an angle of 30 degree with the horizontal. The box moves at 2.00 m/s when it is 30.0 cm vertically above the top of the spring, and the coefficient of kinetic friction betwe..
A box of mass m = 2.5 kg moves along a straight line through a vector displacement d = (7.0 i -3.8 j) m. What is the work done by this force as the box moves
The voltage across a membrane forming a cell wall is 74.0 mV and the membrane is 8.80 nm thick. What is the electric field strength
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