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A 1430-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire and the magnitudes of the (b) horizontal and(c) vertical components of the force that the wall exerts on the left end of the beam.
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is2.82cm. What is the power of the implanted lens
A helicopter propeller blade starts from rest and experiences aconstant angular acceleration of 18.0rad/s2. Find the speed of a point on the blade3.40 m from the axis of rotation when the blade has completed 13 revolutions.
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When the pickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil.
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown (a) directly forward in one case and (b) directly backward in another
A curling stone, with a mass of 20.0 kg, slides across the ice at 1.50 m/s. It collides head on with a stationary 0.160-kg hockey puck. What is the stone's final velocity
Two conductors made of the same material are connected across the same potential difference. Conductor A has twice the diameter and twice the length of conductor B. What is the ratio of the power delivered to A and to the power delivered to B?
A light bulb is rated at 60W, 120 V. how many electrons flow through the bulb per second and find the resistance of the bulb
water vapor consists of nonlinear polyatomic molecules so all three rotational modes are excited at ordinary
A picture window has dimensions of 1.40 m×2.50m and is made of glass 5.50mm thick. At what rate is heat being lost through the window by conduction
question light containing wavelengths of 400 nm 500 nm and 650 nm is incident from air on a block of crown glass at an
Consider a diffraction grating with 7000. lines/cm with a screen 2.50 m away and 440. nm wavelength light. How many side maxima would be observed on one side of the central maximum
Find the x and y components and the magnitude and direction of the electric field at the following points. Find the x and y components and the magnitude of the electric field at the origin.
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