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The hour hand and the minute hand of Big Ben, a that Elizabeth tower clock in London, are 2.70 m and 4.50 m long and have masses of 60.0 kg and 100 kg, respectively. (a) Determine the total torque due to the weight of these hands aboutnthenaxis of rotation when thentimemreads (i) 3:00, (ii) 5:15, (iii) 6:00, (iv) 8:20, and (v) 9:45. (Hands are modeled as long, thin, and uniform.) (b) Dtermine all the times when the total torque about the axis of rotation is zero. Determine the times to the nearest second, soling a transcendental equation numerically.
10.5 g of copper metal is heated to 100 degrees C. The copper is then placed into a cup that contains 25 g of tap water, Find the specific heat of copper
a) At what angle (in degrees) should this strip be placed to yield an apparent focal spot size 2.5 mm x 1.5 mm. b) Using this size target, what angle is required to obtain a 2.5 mm x 2.5 mm apparent focal spot
An aluminium block of mass m1 = 3.45 kg and a copper block of mass m2 = 6.30 kg are connected by a light string over a frictionless pulley. They sit on a steel surface, where θ = 40.0°
A parallel plate capacitor of capacitance 4.3 µF has the space between the plates filled with a slab of glass with ? = 3.9. Find the capacitance after the glass is removed
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
Jupiter is the largest planet in the solar system, having a massand radius that are, respectively, 318 and 11.2 times that of Earth. Suppose that anobject falls from rest near the “surface” of each planet and that the acceleration due to gravity r..
An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at rest relative to it. However, an observer moving at high speed parallel to one of the object's edges and knowing that the object's mass is 2.8 kg ..
A skater of mass 74.5 kg initially moves in a straight line at a speed of 4.80 m/s. what is the skater's final velocity
an object is 15 in front of a diverging lens with a focal length of 10 . a. use ray tracing to determine the location
Galaxy A is measured to be receding from us with a speed of 0.75c. Galaxy B, located in precisely the opposite direction, is found to be receding from us at a speed of 0.85c. a) What recessional speed would an observer on Galaxy A find for our galaxy..
psi x is the wave function for a particle moving along the x axis. write the mathematical that will allow us to
Two of Angie's friends are talking to each other at a distance of 3.0 m from where Angie stands. What sound intensity does he measure for the two talkers
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