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Why can a single object have only kinetic energy, while potential energy requires interactions among objects or systems? Explain with real-world examples.
A cannonball of mass 7.23 kg is shot from cannon at an angle of 49.01° relative to the horizontal and with an initial speed of 53.81 m/s. What is the gain in its potential energy relative to the point from which it was shot
A man with a mass of 62 kilogram skis down a frictionless hill that is h = 2.2 meter high. Find at what horizontal distance from the edge of the ledge does the man land
careful measurements of local variations in the acceleration due to gravity can reveal the locations of oil deposits.
On the planet Arrakis, a male ornithoid is flying toward his stationary mate at 24.0m/s while singing at a frequency of 1190Hz. what is the speed of sound in the atmosphere of Arrakis
The left end of a long glass rod 15.0 cm in diameter has a convex hemispherical surface 7.50 cm in radius, Determine the position of the image if an object is placed in air on the axis of the rod
calculate the ratio of the drag force on a passenger jet flying with a speed of 1100 kmh at an altitude of 10 km to the
In a double slit experiment the separation among the slits is 0.15mm, the distance between the slits and the screen is 140 cm, the wavelength of the light utilized is 643 nm.
A proton has an initial speed of 3.6*105 m/s. What potential dissimilarity is required to decrease the initial speed of the proton by a factor of 4?
a metal rod is forced to move with constant velocity along two parallel metal rails, if the rails are separated by 35.3 cm and the speed of the rod is 45.7 cm/s, what is the magnitude of the emf generated in volts
1. How much more light does one collect with a 4-meter diameter telescope in 0.5 minutes than with a 0.5-meter diameter telescope in 4 minutes?
Two plane mirrors are parallel to each other and spaced 20 cm apart. A luminous point object is placed between them and 5 cm from one mirror. What are the distances from each mirror of the three nearest images in each?
A 5.0mL syringe has an inner diameter of 4.5mm , a needle inner diameter of 0.29mm, What is the minimum force the nurse needs to apply to the syringe
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