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Two slits with a separation of 8.5 x 10-5 cm create an interference pattern on the screen 2.3 m away. If the tenth bright fringe above the central fringe is at a vertical distance of 12 cm from the central maximum, what is the wavelength of the light used?
A 4-kg block lies on a horizontal table whose coefficient of friction is 0.3. A horizontal rope is redirected by a uniform solid disk (pulley) of mass 2 kg to a mass of 12-kg hanging off the table. How many revolutions does the disk of the pulley m..
The flywheel of a gasoline engine is required to give up 530J of kinetic energy while its angular velocity decreases from 690 rev/min to 550 rev/min. What moment of inertia is required
A child pulls a friend in a little red wagon with constant speed. If the child pulls with a force of 16 N for 10.0 m, how much work does the child do on the wagon
The rms electric field of an electromagnetic wave increases from 320 to 960 N/C. (a) Determine the wave intensities for the two values of the electric field. (b) What is the rms magnetic field associated with each electric field? (c) Determine the wa..
There are two horizontal forces on the 2.0 kg box in the overhead view of the figure below but only one is shown. find the second force.
Wildlife biologists fire 20-g rubber bullets to stop a rhinoceros charging at 0.81m/s. What impulse does each bullet deliver
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38Nm . You plan to tighten the plugs by pulling on the end of a 30-cm-long wrench. With what force must you pull
An old wooden tool is found to contain only 18% of 146C that a sample of fresh wood would. How old is the tool
For the real or imaginary nucleus of 70X170, find the net electrical charge of the nucleus and the approximate radius of the nucleus
A toy spacecraft is launched directly upward. When toy reaches its highest point, a spring is released and the toy splits into two parts with masses of .c2 kg and .08 kg.
Show that the Planck radiation law and the Raleigh-Jeans law become identical if the size of the quantum E=hv is allowed to vanish or if the temperature becomes very high.
A series RLC circuit is driven by a generator at a frequency of 2280 Hz and an emf amplitude of 189 V. The inductance is 61.1 mH, the capacitance is 0.426 ?F, and the resistance is 219 ?. (a) What is the phase constant in radians? (b) What is the cur..
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