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A force <20,0,0> N acts for 0.2 seconds on an object of mass 2.4 Kg whose initial velocity was <0,15,0> m/s. What is the new velocity?
What should the charge (sign and magnitude) of a particle of mass 1.42g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N.
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. Determine the intensity level of the infrasound
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. What impulse did the athlete receive from the platform
A 750g, 50-cm-long metal rod is free to rotate about a frictionless axle at one end. What is the rod's angular velocity immediately after the blow
Two capacitors are connected to a battery. The battery voltage is V = 70 V, Determine the total energy stored by the two capacitors
A very tall flagpole, temporarily charged uniformly by lightning, What is the linear density of the charge on the flagpole
Neptune has a mass of 1.02 1026 kg and a radius of 2.48 107 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Neptune on its axis
A 6.00 kg mass (m) is suspended from a 65 kg flywheel having a radius of 0.75 m. Determine the angular acceleration of the flywheel as the mass falls
An object has a charge of -4.3 ?C. How many electrons must be removed so that the charge becomes +2.8 C?
A 99.5 kg horizontal circular platform rotates freely with no frictions about its center at an initial angular velocity of 1.77 rad/s. Find the angular velocity of the platform with its load
A 4.50 g} bullet is fired horizontally into a 1.10 kg} wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.200. The bullet remains embedded in the block, which is observed to slide 0.200..
A person can jump a horizontal distance of 2.82m on Earth, where the free-fall acceleration, g = 9.81 m/s2. How far might the person jump on the moon, where the free-fall acceleration is g/6? How far could the person jump on Mars where the accelerati..
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