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A worker leaves home at 9:00 AM, travels 40 km to the office, and then returns home at 5:00 PM. What is the magnitude of the worker's displacement during this 8-hour span of time?
Three blocks, each having a mass of 1.21 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface. Forces F1 and F2, of magnitude 4.95 N and 11.6 N respectively, find The magnitude of the force applied by the r..
A few bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.3 x 10-8 meter, Find the angular speed of this bacterial motor
A hockey puck leaves a player's stick with a speed of 9.10m/s and slides 39.0m before coming to rest. Find the coefficient of friction between the puck and the ice
It is desired that 7.5C of charge be stored on each plate of a 4.5 -F capacitor. What potential difference is needed between the plates?
The front and rear sprockets on a bicycle have radii of 9.00 and5.10 cm, respectively. The angular speed of the front sprocket is 9.70 rad/s. Determine the following. The linear speed of the chain as it moves between the sprockets.
An electron with a speed of 3.6105m/s enters a uniform magnetic field of magnitude0.057T at an angle of 35° to the magnetic field lines. The electron will follow a helical path.
A plane flying horizontally at a speed of 50.0 m/s and at an elevation of 160 m drops a package of supplies. Two seconds later it drops a second package. How far apart will the two packages land on the ground?
In an emergency situation, a person with a broken forearm ties a strap from his hand to clip on his shoulder. find the tension in the strap
Sam rode her bicycle from her house to school at an average speed of 8 mph. determine how many miles long is the round trip
a virtual image is formed by a convex mirror that has a 30 cm focal length. where must the object be placed if the
An aircraft weighing 812 N is accelerated at 11.8 m/s2 for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant
A cylinder contains 3.5 {\rm L} of oxygen at350 {\rm K} and 2.4 {\rm atm}. The gas is heated, causing a piston in the cylinder to move outward. The heating reasons the temperature to rise to 610 {\rm K} and the volume of the cylinder to increase to 9..
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