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Question: A thin, flat object in which a square hole 30.0 mm on a side has been cut is illuminated with a point source. Light that passes through the hole strikes a screen 300 mm behind the object. Call the direction normal to the screen the z direction. The point source is shifted away from the center of the hole by 150 mm in the positive x direction. The point source is centered on the hole in the y direction and is 300 mm in front of the object in the z direction. What is the length of the bright region on the screen along the x axis?
The planet Neptune orbits our Sun at an average distance of 4.50 * 10^9 km.It's mass is 1.02 8 10^26 kg. The Sun's mass is 1.99 * 10^30 kg. What is the strength of the gravitational field at the "surface"of Neptune
A microphone is moving in air towards a stationary source of sound. The detected frequency is 106 Hz greater than the emitted frequency. What is the speed of sound in the unkown liquid
A steel wire of length L=2.0 m with cross section A=0.5cm2 is supported from one end by the ceiling, Calculate the elongation of the wire
You are on a bridge which is a height 30m above the water. You first drop a ball and then 1.5 seconds later throw a second ball down so that both balls hit the water at the same time.
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 671 m/s. compute the horizontal distance between the end of the rifle
A distant galaxy emits light that has a wavelength of 499.8 nm. On earth, the wavelength of this light is measured to be 503.8 nm. Find the speed of the galaxy relative to the earth
A molecule of DNA (deoxyribonucleic acid) is 2.04 µm long. Determine the effective spring constant of the molecule
In the Bohr model of the hydrogen atom, the electron moves in a circular orbit of radius 5.3 x 10^-11 m with a speed of 2.2 x 10^6 m/s. Find the magnitude of the magnetic field that the electron produces at the location of the nucleus (treated as a ..
solar cells are often coated with a transparent thin film of silicon monoxide sio n 1.45 to minimize re?ective losses
A ball with a mass of 0.620 kg is initially at rest. It is struck by a second ball having a mass of 0.370 kg, find the change in the total kinetic energy of the two balls
A 100-m-long copper wire of radius 0.21 mm is connected across a 1.5-V battery. Assume the resistivity of copper is 1.7 x 10-8 Omega•m. Determine the power delivered by the battery
Three charges are at the corners of an isosceles triangle as shown in the figure (Figure 1) . The ±5.00C charges form a dipole. Discover the magnitude of the force the -10.00C charge exerts on the dipole.
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