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The 2.45kg physics book shown is connected by a string to a 537.0g coffee cup. The book is given a push up the slope and released with a speed of 4.22m/s. The coefficients of friction are mus = 0.382 and muk = 0.248. What is the acceleration of the book if the slope is inclined at 22.5deg?
If one resistor of a particular size is connected to a battery, 2.5A flow from the battery, How much current flows through one of the 10 resistors
define the speed with which the cart reaches positions 3, 2, and 1 (in that order). Neglect friction. Let g = 9.81 m/s2.
A 5mm tall object is placed in front of a thin lens of focal length 4cm. what is the distance of the object from the lens
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the speed at which the rock is launched
The membrane that surrounds a certain type of living cell has a surface area of 6.4 x 10-9 m2 and a thickness of 1.4 x 10-8 m. How much charge resides on the outer surface
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.8 m/s (96 mi/h) and is hit straight back at a speed of 48.4 m/s (108 mi/h). what is the average force exerted on the ball by the bat
An inclined plane with friction, a massless/frictionless pulley, and two blocks, with m1 hanging and m2 resting on the plane. How do you find the acceleration
The angular momentum of a flywheel having a rotational inertia of 0.148 kg·m^2 about its central axis decreases from 6.70 to 0.560 kg·m^2/s in 3.50 s. How much work is done on the wheel
A 28kg rock approaches the foot of a hill with a speed of 15 m/s. Use energy conservation to find the max height above the foot of the hill reached by the rock
A hollow, thin-shelled ball of mass m rolls along a horizontal surface with a translational speed of v. What percent of its total kinetic energy is translational
q1. two speakers one straight behind the other are each generating a 547-hz sound wave. what is the smallest separation
Assume that a binary star system consists of two stars of equal mass. They are observed to be separated by 310 million kilometres and take 4.0 Earth years to orbit about the point midway between them.
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