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A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. At 27.1°, the block starts to slide down the incline, traveling 2.80 m down the incline in 1.70 s. Calculate the coefficient of static friction between the block and the plank.
Calculate the kinetic coefficent of friction between the block and the plank.
A certain freely falling object requires 1.6s to travel the last 38.00m before it hits the ground. From what height above the ground did it fall.
What is the speed of the center of mass
Consider a large chemical storage tank that is 100 ft in diameter and 25 feet tall. What is the force exerted by the fluid on the base of the tank
q1. using the equation fm v2r for a force an object in circular motion. find the radius r of motion of a m1.6 kg ball
In an L-R-C series circuit, the rms voltage across the resistor is 28.0V , across the capacitor it is 91.0V, What is the rms voltage of the source
Draw a ray diagram depicting the following: and object is 20cm in front of a concave mirror whose radius of curvature is 25cm. Calculate the image position using the mirror equation
What is the repulsive force between two pith balls that are 12.0 cm apart and have equal charges of -26.0 nC?
A 1.7 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.46 rad/s , compute rotational kinetic energy of the rolling hoop
A transformer with 1710 turns on the primary and 229 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output
A force vector has a magnitude of 579 newtons and points at an angle 41 Degrees of below the positive x axis. What are (a) the x scalar component and (b) the y scalar component of the vector
Suppose wire A and wire B are made of different metals, and are subjected to the same electric field in two different circuits. How many electrons enter wire B every second
Find the range of visible wavelengths of light in Plexiglas. (Assume that the range of visible wavelengths of light in air is 380 - 760 nm.)
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