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Aladdin sits on a magic carpet at the top of a large dune. Aladdin weighs 540N, the carpet weighs 60 N. Jasmine is giving the carpet a push with a speed of 2 m/s. Not including Jasmine, what is the initial kinetic energy?Right after the push, what is Aladdin and the carpet's initial potential energy, relative to the bottom of the dune, if the height of the dune is 20m?Right after the push, what is the total mechanical energy?If the genie magically made the sand frictionless, what would be the kinetic energy at the bottom of the dune?If the genie weren't there, the friction from the sand would cost Aladdin on his carpet 4000 J by the time he made it to half the dune's height. What would be the kinetic energy at the half-height?
A 60 cm long steel rod with a diameter of 4 cm is mated to a 40 cm long Cu rod with the same diameter. the unmated end of the steel rod( not at the interface) is connected to a 140 degrees C heat source, while the far end of the Cu( not at the int..
A weightlifter lifts 200 kg from the floor to a height of 2 m in 2 s. How much work did the weightlifter perform
An aluminum rod is 22.0 cm long at 20°C and has a mass of 350 g. If 14,000 J of energy is added to the rod by heat, what is the change in length of the rod
An electron initially moving at 2 x 106 meter per second is accelerated through a potential difference of 15 Volt. Calculate its final kinetic energy in joules
A soccer player kicks a rock horizontally off a 40.0 m high cliffinto a pool of water. what was the initial speed given to the rock
Draw the free body diagram of the wooden block. If the wooden block is not moving yet, write the equation describing how the forces are related in the horizontal dimension. Write down the equation describing how the forces are related in the vertical..
When a mass is suspended from a spring, the equilibrium length is increased by 50mm. Find the period and amplitude of the resulting oscillations
A laser with a wavelength of 650 nm passes through a double slit. A pattern is observed on a wall that is 1.5 meters away from the slits. The spacing between 10 bright fringes is measured to be 3 cm. What is the separation between the slits? Show ..
A good example of a classical particle is a marble, which has amass of 11 grams. If the position ofthe marble can be localized by light interference to an uncertaintyof 250 nm, what is the uncertainty in its speed?
An electron moving along the x axis has a position given by x = 12.0 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
A 5.13 kg ball hangs from the top of a vertical pole by a 2.15 -m-long string. Calculate the angle between 0 and 90 degrees that the string makes with the pole
A building having a steel infrastructure is 5.94 102 m high on a day when the temperature is 0.00 °C. How much taller is the building on a day
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