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In a particular region of the earth's atmosphere, the electricfield above the earth's surface has been measured to be 150 N/C downward at an altitude of 248 m and 168 N/C downward at analtitude of 403 m. Calculate the volume charge density of the atmosphere assuming it to be uniform between 248 and 403 m. Neglect the curvature of the earth.
Assume that if the shear stress in steel exceeds about 4.00 108 N/m2, the steel ruptures. (a) Determine the shearing force necessary to shear a steel bolt 1.50 cm in diameter. N (b) Determine the shearing force necessary to punch a 1.50-cm-diameter h..
A heavy-duty stapling gun uses a 0.164 kg metal rod that rams against the staple to eject it. The rod is pushed by a stiff spring called a "ram spring" (k = 30071 N/m). find the speed of the ram at the instant of contact
Two long straight parallel wires are 12cm apart. Wire A carries 1.5A current. Wire B's current is 4.0A in the same direction, Determine the magnetic field due to wire B at the position of wire A
A subway train is traveling at 83 km/h when it approaches a slower train 46m ahead traveling in the similar direction at 23 km/h.If the faster train begins decelerating at 2.1 meter per second square while the slower train continues at constant s..
In an infinite homogeneous medium containing a uniformly distributed radionuclide source emitting radiation energy at a rate of E MeV cm^-3 s^-1, energy must be absorbed uniformly by the medium at the same rate. What is the air-kerma rate
A bat flying in complete darkness emits high frequency sound of 100 kHz to locate objects. What is the frequency in which the bat is received
A red line (? = 630 nm) in the third order overlaps with a blueline in the fourth order for a particular diffraction grating. What is the wavelength of the blue light
An object is located 10 cm in front of a mirror that forms an image of the object on a wall 300 cm, What type of mirror is required to form this image?
This question will ask you to determine the area of a flat piece of metal according to the data in the table below. etermine the mean, standard deviation, and the standard deviation of the mean for the width measurements
A hotel elevator ascends 240 m with a maximum speed of 5.8 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2.
A 3.6- cm-radius ball rolls down an inclined plane from rest at the top. The angular acceleration of the rolling ball about its center is 255 rad/s2, How long is the plane
Four identical metallic objects carry the following charges: +5.0 µC, +5.0 µC, -8.2 µC, and -4.0 µC. What is the final charge on each object
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