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Block B in the figure weighs 760 N. The coefficient of static friction between block and table is 0.28; angle ? is 27°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.
A toy car is driven by a battery of 9 V. It draws a current of 2mA. What is the resistance of the toy car
A -49nC charge is distributed uniformly along the x-axis from x= -1.2m to x= 4m. Consider a point at y= 1.9m on the y-axis, What is the total magnitude of the electric field at the point
Find out the frequency of the fourth harmonic if the string is fixed at one end and free at other. (That is, if the free end is attached to a long string of negligible mass.)
A 2.3kg wood block is pulled along a wood floor at a steady speed. What is the magnitude of the force pulling on the first block
The interior temperature is kept at 5°C, while the temperature at the outside surface is 25°C. Explain by how much heat per second is being removed from the unit?
A light source, S, is located 2.60m below the surface of a swimming pool and 1.30m from one edge of the pool. The pool is filled to the top with water.
Calculae the flow rate ( in grams per second) of blood in the aorta if the flow speed is 42 cm/s.
Think about a communications satellite in geosynchronous orbit. It sits approximately 35,786 kilo meter above the Earth's equator.
The maximum speed of a 3.5-kg mass attached to a spring is 0.67m/s , and the maximum force exerted on the mass is 11N. What is the frequency of this system
A long, straight wire carries a current of 51 A. The magnetic field produced by this current at a certain point is 9.5 x 10-5 T. How far is the point from the wire
What is the highest speed with which an 1180-kg car can round a turn of radius 75.00 m on a flat road if the coefficient of static friction between tires and road is 0.80.
Use the worked example above to help you solve this problem. A tortoise and rabbit engage in a footrace over a distance of 3.70 km. The rabbit runs 0.400 km, then stops for a 83.0-min nap. Upon awakening, he remembers the race, and runs twice a..
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