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when an object is dropped from a height of 20.0m above the surface of planet B, it will fall 5.0m during the 2nd second of the fall. what is the acceleration of a falling object close to this planet?
The pulmonary artery, which connects the heart to the lungs, is 8.5 cm long and has a pressure difference over this length of 450 Pa. If the radius of the artery is reduced by 14% , by what factor is the blood flow rate reduced
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
Sgt Jay sits in a hovercraft 35.2 m above the surface of the planet Bai. The acceleration due to gravity at the Bain surface is 5.67 m/s^(2) down. What is Jay's velocity at t = 4.32s
In a movie, a person is supposed to jump with a motorcycle from the roof of one skyscraper to another one. what minimum initial speed would she need to make the jump
A rubber ball of mass 149 g is thrown directly at a wall with a speed of 4.7 m/s. what is the magnitude of the impulse imparted by the wall on the ball
A ball is thrown straight up from the ground with an initial velocity of 39.2 m/s; at the same instant, a ball is dropped from the roof of a building 27.7 m high - After how long will the balls be at the same height?
A very light rigid rod with a length of 0.500 m extends straight out from one end of a meter stick. The stick is suspended from a pivot at the far end of the rod and is set into oscillation.
A fluid with resistivity 9.40 ? seeps into the space be¬tween the plates of a 110-pF parallel-plate air capacitor. what is the resistance between the plates
Beginning with expressions for the reactance of a capacitor and an inductor, derive an expression for the resonant frequency
A 7.28-%u03A9 resistor is connected across a 9.00-V battery. The voltage between the terminals of the battery is observed to be only 7.27 V. obtain the internal resistance of the battery
Suppose you pour water into a container until it reaches a depth of 12 cm, What is the pressure at the bottom of the container
A sound wave is traveling in seawater, where the adiabatic bulk modulus and density are 2.3 109 Pa and 1025 kg/m3, respectively. What would be the beat frequency heard by an underwater swimmer
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