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A 9-m uniform beam of weight 77 N is supported with two ropes at the ends. If a 27-N person sits at 6 m from the left end of the beam, what is the tension in the right rope?
A 11.0nC point charge is at the center of a 2.50m× 2.50m × 2.50m cube. find the electric flux through the top surface of the cube
Assume that in the course of a measurement the bridge is balanced and then the power supply voltage changes by 10% what will happen to the balance of the bridge? Describe.
250 cm3 of hot tea at 89degc are poured into a very thin paper cup with 10 g of crushed ice at 0degc. calculate the
One mole of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. evaluate the heat added to the gas
It has been suggested that rotating cylinders about 8.0 mi long and 5.0 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acce..
A coil has resistance R=14Ohms and inductance L=3milliHenries and is powered by a generator with variable frequency and maximum voltage V = 10Volts.
Two 10-cm charged disks face each other, 20 cm apart. The left disk is charged to -30 nC and the right disk is charged to +30 nC. What is the electric field (both magnitude and direction) at the midpoint between the disks? What would be the force (ag..
The speed of electromagnetic waves (which include visible light, radio, and x rays) in vacuum is 3.0 x 108 m/s. Wavelengths of visible light waves range from about 400 nm in the violet to about 700 nm in the red. What are the (a) minimum and (b) m..
A current of 14.0 mA is maintained in a single circular loop of 3.80 m circumference. A magnetic field of 0.610 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. Please have answer in mA · m2
A 1.10kg block is attached to a spring with spring constant 17.5N/m . While the block is sitting at rest, determine The amplitude of the subsequent oscillations
Calculate the ratio of the number of HBr molecules in state
A rocket is projected upward from the earth's surface (r = RE) with an initial speed v0 that carries it to a distance r = 1.8 RE from the center of the earth. What is the launch speed v0
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