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When two parallel slits are illuminated with monochromatic light of wavelength 632.8 nm, the angle between the center of the central maximum and the center of the second side maximum is .45 degrees. What is the distance between the parallel slits?
An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. how big should she try to make the nucleus
Two spheres are launched horizontally from a 1.10 {rm m} high table. Sphere A is launched with an initial speed of 5{rm m/s}. Sphere B is launched with an initial speed of 3.0 {rm m/s}.
A 17-kg projectile is fired at an angle of 60° above the horizontal and with a speed of 240 m/s. At the highest point of its trajectory the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial spe..
A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale).
An elevator accelerates upward at 1 m/s2. When the elevator is moving upward at 2 m/s, a bolt drops from the ceiling which is 2.5 m above the?
Five seconds later, the police officer leaves on her motorcycle, starts her stopwatch, and accelerates at 2 m/s^2 toward the car. According to her stopwatch, how many seconds until she catches the car
The disk and the platform go from rest to an angular velocity of 8.5 rad/s in 2.5 seconds. What is the moment of inertia of the disk
A 33.0 g bullet moving at 434 m/s strikes a 5.0 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 295 m/s. How fast is the bag moving while the bullet exits.
Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. What is the focal length of the concave lens
a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 211 m, What are the acceleration of the green car
What are the direction and magnitude of the magnetic force the field exerts on the proton.
A 1 m long pedulum with a 2kg mass is pulled back 0.1m and after that released, so that it swings back and forth. How did they solve T= 2.007 seconds.
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