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A game of tug of rope is being played. The rope is being pulled with a force of 18 N East and 20 N West. What is the net force on the rope?
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At a playground, a toddler climbs on his bike starts to pedal away from his dad as fast as he can, at 12.6 km/h, towards a busy road that is 74.2 m away. At Δt=3.44 seconds later, his dad glances up from his phone and no ...
Question: The superheroine Xanaxa, with a mass of 65.9 kg, is in a hair-raising chase after the 76.1-kg arch-villain Lexlax. She leaps from the ground to the top of a 183-m-high building, then dives off and comes to rest ...
Question: A roller coaster moves 200 ft horizontally, then rises 135 ft at an angle of 30.0° above the horizontal. Next, it travels 135 ft at an angle of 40.0° below the horizontal. Use graphical techniques to find the r ...
Question: This problem concerns the properties of circular orbits for a satellite of mass m orbiting a planet of mass M in an almost circular orbit of radius r. In doing this problem, you are to assume that the planet ha ...
Question: As Shown in the figure, there are 3 point charges along the x-axis located at 3,8, and 11 cm. What is the x-component of the force on the charge located at x = 8 cm given that q = .85 uC in N? The response must ...
Question: One of the most worrisome waste products of a nuclear reactor is plutonium 239 ( 239 Pu). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus ( 4 He + 235 U), ...
Atoms bond to atoms through their electrons the following analogy will be used to help us understand how this occurs. Imagine that the atoms of different elements are like kids coming to school. Each kid comes to school ...
Question: A real image is four times as far from a lens as is the object. What is the object distance, measured in focal lengths? The response must be typed, single spaced, must be in times new roman font (size 12) and m ...
Question: In this problem we will consider a collision of two moving objects such that after the collision, the objects stick together and travel off as a single unit. The collision is therefore completely inelastic. You ...
Question: An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction µ between the object and the surface. The object has speed v when it reaches x=0 and encounters a spring. Th ...
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