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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 0.075-kg arrow is fiered horizontally. The bowstring exertsan arerage force of 65 N on the arrow over a distance of 0.90m. With what speed does the arrow leave the bow
A car travels due east with a speed of 32.0 km/h, The traces of the rain on the side windows of the car make an angle of 52.0° with the vertical, Find the velocity of the rain
At what time after the discharge begins is the energy stored in the capacitor reduced to half its initial value? RC=3ms (timeconstant for capacitor to discharge)
A 20.0 kilogram kid stands at the center of a125 kg playground merry-go-round which rotates at 3.10 rad/s. find what is the new angular velocity of the system
A closed system is observed to have 51objects in it. Initially, the total energy of the system is 6024 J. After 8.8 hour has passed, calculate how much total energy will the system contain
question a blue ball is thrown upward with an initial speed of 21.2 ms from a height of 0.5 meters above the ground.
A 1600 kg car drives around a flat 210m -diameter circular track at 25m/s. What is the magnitude of the net force on the car
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.20 10-10 T. How much energy does this wave carry through the window during a 65-s phone call
Find the change in internal energy using first law of thermodynamics.
Winds pick up suddently,increasing the wave's amplitude to 6m. Explain how does this change in amplitude affect the wave's frequency and the amount of energy it transports?
a basket ball player is 10.0 m from the basket. the height of the basket is 3.05 m. if he shoots the ball at an angle
A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill
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