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A man of mass 62.3 kg stands on a scaffold supported by avertical rope at each end. The scaffold has a mass of 24.6 kgand is 3.7 m long. Suppose the man stands to the right fromthe middle of the scaffold that is a distance one sixth of the length of the scaffold.
What is the tension in the right rope?What is the tension in the left rope?
A ball of radius 0.200 m rolls with a constant linear speed of 3.60 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
scenarioa building has a single elevator at the atrium serving 4 floors.someone on the first ground floor who wants to
a ball is thrown upward from the top of a 23.1-m-tall building. the balls initial speed is 11.1 ms. at the same instant
A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. Is she nearsighted or farsighted
A balloon whose volume is 500m3 is to be filledwith hydrogen at atmospheric pressure. How many cylinders are required
q1. a simple harmonic oscillator consists of a block of mass 1.80 kg attached to a spring of spring constant 107 nm.
Consider 1 cubic meter of dry at the surface with a temperature of 300 K and a pressure of 1000 mb. Problem 19) How much energy must be added to this cubic meter of air in order to double its volume? What is the final temperature?
A ring of radius R has uniform charge per unit lenght ? C/m (?>0), and z is the dince along its axis. Explain why the electric field must be zero at the center of the ring
How many J of energy must be removed when 156 g of steam, at a temperature of 175.0 °C, is cooled and frozen into 156 g of ice at 0 °C.
q1. a 220 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. if
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, What is the initial value of the angular velocity
The isotope 218 84 Po (218.008965 u) can decay by eitheralpha or beta emission. What is the energy release in each case
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