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A 3.20-m-long, 370kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0kg construction worker stands at the far end of the beam.What is the magnitude of the net torque due to the worker and gravity about the point where the beam is bolted into place?
question why is the spectrum from a black body source continuous while a spectrum for a gas discharge source of the
assume that you have a mass of 50.0kg. earth has a mass of5.97x10^24kg and a radius of 6.38x10^6m. what is your weight
a race car travels around a circuit at a constant speed of 45 m/s. it first heads East for 1min, then SOuth for 1 min, how far does the car drive
A soccer player kicks a rock horizontally off a 41.9 m high cliff into a pool of water. If the playerhears the sound of the splash 3.09 slater, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
A car entering a freeway ramp accelerates from 14 m/s to 25 m/s in 10 seconds. what is the cars average acceleration during this 10 seconds.
As you get ready for your early morning physics class, you comb your hair in front of a planar mirror. How far away from you is your image
A bat strikes a 0.145- baseball. Just before impact, the ball is traveling horizontally to the right at 40.0, and it leaves the bat traveling to the left at an angle of 30 above horizontal with a speed of 65.0. Find the vertical component of the a..
A nonconducting solid sphere of radius 8.40 cm has a uniform volume charge density. The magnitude of the electric field at 16.8 cm from the sphere's center is 2.21 103 N/C.
A 6.00 kg box is resting on a table. You push down onthe box with a force of 8.00 N. What is the magnitude of thenormal force of the table on the block
1. suppose that you want to cook a 1 inch 2.5 cm thick steak to medium doneness which is an internal temperature of
What is the minimum work needed to push a 900kg car 930m up along a 8.0 degree incline? Assume the effective coefficient of friction retarding the car is 0.22
What is the resulting compressional force on the Earth. what is the acceleration of a rock at top of its trajectory when it has been thrown straight upward.
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