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A 5.00-m beam is hanged horizontally about its ends by two very light cables A and B as shown in Fig. 4. The angles these cables make by the horizontal ceiling are shown, and the tension in cable A is measured to be 875 N. Discover: (a) the tension in cable B, (b) the weight of the beam, and (c) the location of the center of gravity of the beam.
A 5 kg mass attached to a horizontal spring is pulled from its equilibrium position by 4 m and let go. find is the maximum velocity of the mass
When you take a bath, how many kilograms of hot water (51°C) should you mix with cold water (12°C) so that the temperature of the bath is36°C? The total mass of water (hot plus cold) is 189 kg. Ignore any heat flow among the water and its outside sur..
Lets say you have a helicopter with 3 blades and eachblade is 5.20 m long and has a mass of 220 kg.The rotor is rotating at 325 rpm. What is the rotationalinertia of the rotor assembly about the axis of rotation?
A circuit consists of three resistors (R1=29 , R2=14 , R3=41 ) and a battery(37 V). What is the current coming from the battery
A bolt is dropped from a bridge under construction, falling 67 m to the valley below the bridge. (a) In how much time does it pass through the last 22% of its fall? What is its speed (b) when it begins that last 22% of its fall and (c) when it reache..
A 24-kg boy stands 1 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 218 kg m2. Calculate the speed of the boy relative to the surface of the merry-go-round
A runner on a 100-m diameter circular track complete a full lap in 80s. What is the angular speed of the runner
the microwave radiation left over from the big bang explosion of the universe has an average energy density of 3.88
A positive charge of 0.800? C is located in a uniform field of 9.00×104 N/C. How close are the two charges
question1the starter motor of a car engine draws a current of 126 a from the battery. the copper wire to the motor is 6
a 30.0 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found.
An iron brick measuring 200 mm / 20 cm / 0.05 m is submerged in pure water. (mass density 7860 kg/m^3/ weight 490 lb/ft/ specific gravity 7.86), What is the net force on the brick
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