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Tarzan has a mass of 80 kg and is about to be attacked by a gang of Amazon warriors. Jane has a mass of 60 kg and swings on a vine to come to his rescue, starting at 2 m/s and 5 m above the ground. What is her velocity when she reaches Tarzan a ground level?
how do I approach this question?
When a musical note is played on a large church pipe organ, the sound originates from blowing puffs of air into a tube of a fixed length. Does this puff of air have to have only the particular frequency of the final note? If so, how do you think t..
Consider a universe in which Einstein's postulates and special relativity are valid but the speed of light c = 200 miles/hour. A Toyota with proper length L and a Bentley with proper length 3L are racing.
A Cylindrical solenoid has a radius a = 20 cm and a length l = 160cm. It is wound tightly controlled its 3200 turns of wire. And The wire carries a current i = 4μA. What is the magnetic field inside the solenoid?
A small metal ball with a mass of 6.19 g and a charge of 6.15 mC is located at a distance of 0.67 m above the ground in an electric field of 11.5 N/C directed to the east
Assume that the total energy E of an electron greatly exceeds its rest energy. If a photon has a wavelength equal to the de Broglie wavelength of the electron, what is the photon's energy
a calculate the binding energy of 23na using the table of atomic masses. express your answer in unified mass units but
You want a screen to be illuminated with an intensity of 662 mW/m2. The screen is 10.05 m away from the light source, What is the power of the light source
A microwave oven generates electromagnectic waves of frequency2.45 GHz. The microwaves enter the oven and are reflected by the walls. Calculate the speed of the micro waves from these data
When armature is rotated by half revolution, its magnetic polarity changes. Why is it necessary to change the polarity of armature magnet? Explain how does the change take place
Two point charges are fixed on the y axis: a negative point charge q1 = -28 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.31 m. A third point charge q = +8.7 µC is fixed at the origin. The net electrostatic force exerted on the char..
The sled dog drags sleds A and B across the snow. determine what is the tension in second rope
An electron and a proton are initially very far apart (effectivelyan infinite distance apart). They are then brought together to forma hydrogen atom, in which the electron orbits the proton at anaverage distance of 5.39*10-11 m.
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