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1. At 25°C, a solution containing 0.2 g of polyisobutylene in 100 mL of benzene developed a rise of 2.4 mm at osmotic equilibrium. Calculate the molecular weight of polyisobutylene if the density of solution is 0.88 g/mL.
A television broadcast antenna is located at the top of a steep tall mountain. The television station broadcasts by a power of4.00 kilowatts at a frequency of 180.0 MHz. (rms =“Root Mean Square"= square root of the average value of a function squared..
Determine the smallest number of whole logs (p = 730 kg/m3, radius = 0.0750 meter, length = 2.91 meter) that can be used to build a raft that will carry four people
A particle with charge ?2 µC is located on the x-axis at the point 4 cm, What is the magnitude of the total electrostatic force on a third particle with a charge of -2 µC placed on the x-axis at -2 cm
An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. Determine the electric field energy density at P
The coefficient of friction is 0.3. The Initial speed is 3 m/s. How far does it slide down along the path before it comes to rest
A man sitting in a bosun's chair that dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. The combined mass of the man and chair is 86 kg. With what force magnitude should the man pull on ..
A 3.0 kg block is traveling in the -x direction at 5.0 m/s, and a1.0 kg block is traveling in the +x direction at 3.0 m/s. Find the velocity VCM of the center of mass. Subtract VCM from the velocity of each block to find the velocity of each block in..
A horse pulls a cart on a level road with a force of 140.0 Newton at angle of 25.0 degree with respect to the horizontal. Compute how much work does the horse do in 12.6 minute
Mrs.T boards plane A and her class boards plane B. The two airplanes leave the airport at the same time. Mrs. T's plane is flying at a heading of 120 degrees and the class plane is traveling at 320 degrees.
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, What is its amplitude if they interfere destructively
A model airplane of mass 0.530 kg is flying at constant speed in a horizontal circle at one end of a 29.0 m cord and at a height of 11.0 m. What is the acceleration of the plane
A 200 g mass attached to a horizontal spring oscillates at a frequency of 2.0 Hz . At one instant, the mass is at x= 5 cm and has v= -30 cm/s. a.Determine the period. b. Determine the amplitude. c. Determine the maximum speed. d. Determine the total ..
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