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A balance beam has two clockwise torques applied, 22N @ 5.5m, and 110N @ 2.4 m. Balance is achieved with a 55N force. How far is that force from the balance point?
Suppose |L| = 10 and r = 2i + 3j + 4k and |p| = 10. What is the angle between the radius and momentum vectors
A spring has a spring constant = 40 N/m. It is compressed by a distance 10 cm. calculate Distance along the track to which the cart travels
A telescope for astronomy view has an objective lens 180[mm] diameter with focal length 2000[mm], What magnifications does each provide
The drawing in problem 11 chapter 9 shows a person (W=584N) doing push ups. Find the normal force exerted by the floor on each hand
the cycle for a heat engine that uses a gas having ? =1.25. The initial temperature is T1=300K, What is the power output of the engine
You throw a 21.6 N rock vertically into the air from ground level. You observe that when it is a height 14.4m above the ground, What is its speed just as it left the ground
A camera has a telephoto lens of 260-mm focal length. The lens can be moved in and out a distance of 18.5 mm from the film plane by rotating the lens barrel. what is the closest object distance that can be focused
q1. a small metal sphere carrying a net charge of -2.70 is held in a stationary position by insulating supports. a
At very fast car races the sound of the engine as a car approaches is much different than when it passes you. How fast would the car need to be going to have the change in frequency be one octave
To balance a very light rod when a down force is applied at a point 0.77m to the left of a supporting fulcrum (pivot point), What is the magnitude of the downward force
A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. Find the distance from the source at which the intensity is 0.80 10?6 W/m2
A stunt man (69.3 kg) swings across a valley at the end of a 28.2 m long rope. Find the tension in the rope at the bottom of the swing
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