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A.) It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth?
B.) Assume the earth is spherical. Relatice to someon in the roation axis, wheat is the linear speed of an object on the surface if the radius vector from the center of the earth to the object makes an angle of 69.0 degree with the axis of rotaion. The radius of the earth is 6.37*10^3 km.
C.) What is the acceleration of the object on the surface of the earth in the previous problem?
A charged particle moves through a velocity selector at a constant speed in a straight line, Calculate the charge-to-mass ratio of the particle.
find the charge on the block. A very small charged block with a mass of 2.05g is placed on an insulated, frictionless plane inclined at an angle of 17° with respect to the horizontal.
In heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5 minutes, and finally you drive at 15 m/s for another 2.5 minutes. compute the average velocity between t=0 and t=7.5 minutes.
A potential difference of 13 V is found to produce a current of 0.45 A in a 2.7 m length of wire, Find the resistance and resistivity of the wire
Using the capacitance determined in part (a),which equals 21 micro F, compute the current in the circuit 6.6 ms after the switch is closed. Assume that the capacitor is uncharged initially and that the emf of the battery is 9.0 {rm V}. Resistance= ..
Which kind of research is Professor Carter employing.
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
The heels on a pair of women's shoes have radii of 0.42cm at the bottom. If 32 percent of the weight of a woman weighing 580N is supported by each heel, find the stress on each heel.
The press box at a baseball park is 30 ft above the ground. A reporter in the press box looks at an angle of 18 degrees below the horizontal to see second base. What is the horizontal distance from the press box to second base.
he 5.0- block is pulled to the right with a force as shown in the figure . The coefficient of static friction between all surfaces is 0.55 and the kinetic coefficient is 0.3, illustrate what is the minimum value of needed to move the two blocks?
A charge of 6.53mC is placed at each corner of a square .470 m on a side. Determine the magnitude of the force on each charge. Determine the direction of the force on each charge.
Thermal energy can shift some of the electrons in a hot semiconductor from valence levels to conduction levels. What effect do these shifts have on the semiconductor's ability to conduct electricity.
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