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Double slits of 0.115 mm separation are placed at the front of a lecture room that is 17.1 m long. The interference pattern is cast on a screen at the front by reflecting the pattern from a mirror on the back wall of the room. If the light source is a helium-neon laser (%u03BB = 633.0 nm), what is the separation between the first two bright fringes?(m)
Biometric measurements indicate that each hand typically makes up about 1.25% of body weight. What horizontal force should her wrist exert on her hand.
A 60kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.3 m/s2, find the magnitude of the acceleration of the boy toward the girl.
The closest star to our solar system is Alpha Centauri, which is 4.30 light years away. How much time would elapse on a clock on the Earth
A violin string that is 57.8 cm long has a fundamental frequency of 350 Hz. What is the speed of the waves on this string
A spring has a force constant of 323 N/m and an unstretched length of 6 cm. One end is attached to a post that is free to rotate in the center of a smooth table, as shown in the top view below. The other end is attached to a 4-kg disk moving in un..
If the coils of a heater have a resistance of 6 Omgea when hot, what current does the heater require
A 352-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. Find the magnitude of the motorcycle's acceleration
A car travelling at 23 m/s runs out of gas while travelling up a 20 degree slope. How far up the hill will it coast before starting to roll back down.
What is the physical meaning of the y-intercept?
Many stores have "security mirrors" mounted on ceilings or in corners so that employees can keep watch over large parts of the store, what is the magnification of the image
Kaitlynne is using a magnifying glass (f = 0.098 m) while trying to solder a computer circuit board. find the distance between the glass and the circuit board
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 14.9 rad/s. What is the angular speed of the wheel at the higher temperature
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