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An artillery shell is launched on a flat, horizontal field at an angle of ? = 41.6° with respect to the horizontal and with an initial speed of v0= 327 m/s. What is the horizontal distance covered by the shell after 8.57 s of flight? What is the height of the shell at this moment?
A pair of speakers separated by 0.700m is driven by the same oscillator at a frequency of 662Hz. An observer, originally positioned at one of the speakers, begins to walk along a line perpendicular to line joining the speakers. (Assume the speed o..
What is current temperature and peak wavelength What is the proper description of their situation
A boy in a moving bus at +6 m/s observes a car moving at -3 m/s. What is the actual velocity of the car with respect to the bus?
Find the magnitude of total displacement of the object
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
Calculate the period T and the tension in the string F as a function of the angle. Compute the moment of inertia of this system for an axis that passes through the combined center of mass and is perpendicular to the plane of the rings.
A lead ball, with an initial temperature of 25oC, is released from a height of 101.0 m. It does not bounce when it hits a hard surface. Presume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball ..
You push with a 20N horizontal force on a 2 kg mass resting on the horizontal surface against a horizontal friction force of 12N. What is the acceleration.
Two freight cars, each with a mass of 2.4 multiplied by 105 kg, collide and stick together. One was at first moving at 3.4 m/s and the other was at rest. What is their final speed.
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, your 1200 square ft house might lose heat through the walls at a rate of 4000 W. How much energy might you lose in one week?
A hot (70 C) lump of metal has a mass of 250 gm and a specific heat of .25 cal/gm-C. John drops the metal into a 500 gm calorimeter (specific heat of .10 cal/gm-C) containing 75 g of water at 20 C. Once they reach equilibrium, what will be the fin..
The potential at the center of a uniformly charged ring is 44kV, and 15.0 cm along the ring axis potential is 30kV. Find the ring's radius and its total charge.
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