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Peter drops a stick of dynamite down another deep hole near Spruce Mountain. He times it from the moment he lets go and hears the sound exactly 11.20 seconds later. If the speed of sound is 343 meters / second, how deep is this hole?
A uniform rod of mass M and length L can pivotfreely (i.e., we ignore friction) about a hinge attached to a wall,as in Fig. 8–54. The rod is held horizontally and thenreleased.
A ball is tossed directly upward at an initial speed of 5.7 meter per second and is caught when it falls back down to the thrower's hand, Determine the average speed for the ball journey
A stationary proton (q=1.60*10^6 c) is located among the poles of a horseshoe magnet. Where the magnetic field strength is 0.15 T. What is the magnitude of the magnetic force acting on the proton?
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.14 m2 and whose thickness is 8 millimeter. compute what is the percentage lost by the window
The refrigerant is now cooled to 20 F. determine the mass of the refrigerant.
Consider an oil film (n = 1.50) on water (n = 1.33) and 600nm incident light. Find the minimum film thickness for constructive interference
the international space station orbits the earth at an average altitude of 362 km. assume that its orbit is circular
A projectile is fired at 30° above the horizontal. Any effects due to air resistance are negligible. What is the horizontal component of the initial velocity
A man riding a bicycle 140kg together is traveling at 8.6 m/s due north when he is brought to a stop in .50 seconds by a gazelle running to the south. Calculate the impulse exerted on the cyclist.
Calculate the final image position relative to the last lens and its linear magnification relative to the original object when (a) all three lenses are positive, (b) the middle lens is negative, (c) the first and last lenses are negative. Provide ..
A photon undergoes Compton scattering off a stationary free electron. The photon scatters at 30° from its initial direction; its initial wavelength is 2.0 × 10-12 m. What is the electron's final kinetic energy
q1. a child goes down a playground slide with an acceleration of 1.20 ms2. compute the coefficient of kinetic friction
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