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A particle moves along the x axis. Its position varies with time according to the expression x ! #4t % 2t 2 where x is in meters and t is in seconds. 3 The position–time graphfor this motion is shown in Figure 2.4. Note that the particle moves in the negative x direction for the first second ofmotion, is momentarily at rest at the moment t ! 1 s, and moves in the positive x direction at times t & 1 s. (A) Determine the displacement of the particle in the time intervals 0 to to 1 s and 1 s to 3 s.
A five-slit system with 7.8 um slit spacing is illuminated with 615 nm light. Find the angular positions of the first two maxima
The intensity of the light that reaches Earth from the star is 3.94 x 10-21 W/m2. At what rate does the star radiate EM energy
Electrons in a photoelectric-effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10 eV
A car battery with a 12 V emf and an internal resistance of 0.035 is being charged with a current of 60 A. What is the rate Pr of energy dissipation inside the battery
A 1200-turn coil of wire 2.30cm in diameter is in a magnetic field that increases from 0 T to 0.110T in 12.0ms. What is the emf of the coil
A uniform rectangular 87.25 kg refrigerator with height h = 2.089 m and width w = 1.115 m is pushed at a constant velocity across a level floor. The refrigerator is pushed in the horizontal direction halfway between the floor and the top of the refri..
How many times hotter than the Sun's surface is the surface of a star the same size, but that gives off twice the Sun's energy per second (that is, is twice as luminous)?
Smoke particles in the air typically have masses of the order of 10^-16 kg. Find the root-mean-square speed of Brownian motion for a particle with a mass of 3.00 x 10^-16kg in air at 300K
Consider a single electron, with a mass of 9.1×10?31 , subject to a single force equal to the weight of a penny, What is the acceleration of the electron
A sample of 2.3×1010 atoms that decay by alpha emission has a half-life of 150 min. How many alpha particles are emitted between t=30 min and t=160 min
Two very thick equally-magmetized square plates of side 0.23m and of mass 20 g, Calculate the B field between the two plates, if the distance between them is 0.123 cm
Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. What was the speed of the second mass before the collision
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