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A continuous cable of total length 4 m is wrapped around the small pulleys at A, B, C, and D. If each spring is stretched 300 mm, determine the mass m of each block. Neglect the weight of the pulleys and cords. The springs are unstretched when d = 2 m.
What is the magnitude of a point charge that would create an electric field of 0.920 N/C at points 0.872 m away
The length of a beam increases by 1.46mm when its temperature is raised from 44.92oC to 90.5 oC. What is the length of the beam at the initial temperature? The thermal expansion coefficient of the material is 0.000053 /oC.
A ball is tossed from an upper story window of a building. The ball is given an initial velocity of 7.60 m/s at an angle of 24.0 degree below the horizontal. find the height from which the ball was thrown
a spelunker is surveying a cave. she follows a passage 160m straight west then 290m in a direction 45 degree east of
During a cardiac cycle, the heart squeezes about 65g of blood on each contraction into the arterial circulation. what is the maximum force acting on the center of mass of the blood
This discussion provides a good understanding of the difference between Radio Frequency Discharge (RFD) and Dielectric Barrier Discharge (DBD) in an excimer lamp. Qualitatively speaking, micro-plasmas are formed in a DBD (which are thread-like in ..
A toroidal shaped magnetic material of radius, a, and cross sectional radius R has a small transverse gap cut into it of length l. The toroid is uniformly overwound with a coil of N loops carrying a current I. Show that for a ferromagnetic materia..
A hot-air balloon consists of a basket, one passenger, and some cargo. Let the total mass be M. Draw a free-body diagram for the descending balloon
A 52.4-gram ball is thrown from the ground into the air, with an initial speed of 16.3 m/s at an angle of 27.4o above the horizontal, Determine the corresponding values of the momentum (direction and magnitude) and the change in momentum
A machine part rotates at an angular speed of 0.56 rad/s; its speed is then increased to 3.46 rad/s using an angular acceleration of 0.44 rad/s2, Find the angle through which the part rotates
A simple ideal pulley system has a mechanical advantage of 14. How much force is required to lift a boulder of with a weight of 5,270 Newton
The electric potential between two parallel plates is given by V(x) = (8.0 V/m)*x + 5.0 V, with x=0 taken at one of the plates and x positive in the direction toward the other plate. What is the charge density on the plates
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