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Two flat surfaces are exposed to a uniform, horizontalmagnetic field of magnitude 0.58 T. The first surface is tilted atan angle of 21° from the horizontal, and a net magnetic flux of6.4 x 10-4 Wb passes through it. The same net magneticflux passes through the second surface. (a) Determine the area of the first surface. (b) Find the smallest possible value of the area of the secondsurface.
The impact with the racket gives the ball a constant acceleration over a distance of 47 cm. Illustrate what is the magnitude of the net force acting on the ball?
Under ambient conditions (T=300K ), the intrinsic electron concentration of silicon (Si) is ni=1.45*10^10cm^-3. Calculate the band gap energy of the semiconductor
At an amusement park there is a ride in which cylindrically shapedchambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outerwall moves at a speed of 3.5 m/s, and an83 kg pers..
A clock has a second hand whose tip rubs against the inside of the glass cover. what is the minimum torque that must be applied to the second hand
A molecule of DNA (deoxyribonucleic acid) is 2.04 µm long. Determine the effective spring constant of the molecule
A lens for a 35-mm camera has a focal length given by f = 47 mm. What is the magnification of the image on the film
A block of mass m1= 0.50kg placed in top of another block of mass m2= 0.80 kg, which rests on a frictionless surface. A horizontal force of 2.0N is applied to the lower block. Find the acceleration of the system of two blocks
An inductor is connected to a source of sinusoidally varying voltage with constant amplitude and a frequency of 50.0 Hz. what will be the new rms current
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum. How wide is the slit?
Two small balls are given positive charges. When they are a distance of 15.6 apart, the repulsive force between them has a magnitude of 0.220. What is the charge on the second sphere
A candle is placed 17.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
A certain heat engine does 10.2 kJ of work and 9.5 kJ of heat is transfered to the environment in a cyclical process. What was the heat transfer into this engine
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