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The system in Fig. 12-36 is in equilibrium. A concrete block of mass 225 kg hangs from the end of the uniform strut of mass 45.0 kg. For angles = 30.0° and θ = 45.0°, find (a) the tension T in the cable and the (b) horizontal and (c) vertical components of the force on the strut from the hinge.
What should be the least kinetic energy in electron volts
A car of mass 1510 kg traveling at 22 m/s is at the foot of a hill that rises 115 m in 2.2 km. At the top of the hill, the speed of the car is 12 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses
a 3 micro-colomb charge is located 1m from a 5 micro-colomb charge. what new distance between the two charges would
Two charges are located in the x-y plane. If q1 = -4.25 nC and is located at x = 0.00 m, y = 0.680 m and the second charge has magnitude of q2 = 3.00 nC and is located at x = 1.50 m, y = 0.550 m, calculate the x and y components
a peanut is placed 42 cm in front of a two-lens system lens 1 nearest the peanut has a focal length f1 20 cm lens 2
A rope of length L = 5.2 m with a total mass of m = 0.205 kg is tied to a hook rigidly mounted into a wall. What is the height of the pulse that returns
A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. Find what is the fundamental frequency if the tube is 0.250 meter long, taking air temperature to be 37°C
Illustrate what is the maximum load that can be hung from a copper wire of diameter 0.46 mm? Answer in units of N.
A visual binary has a parallax of 0.4" (arcsec), a maximum separation (in arcsec) of a=6.0", and an orbital period P=80 y. What is the total mass of the binary system
A dead tree is initially stationary and there is a 30.0-degree angle between the tree and the vertical. The roots finally give way and the tree topples to the ground (rotating on an axis that is parallel to the level ground and intersecting the ba..
A playground is on the flat roof of a city school, 4.6 m above the street below (see figure). The vertical wall of the building is h = 6.10 m high, forming a 1.5-m-high railing around the playground.
A 56.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.44 multiply.gif 102 m/s from the top of a cliff 134 m above level ground, What is the initial total mechanical energy of the projectile
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