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An athlete at the gym holds a 1.0 kilogram steel ball in his hand. His arm is 62 centimeter long and has a mass of 4.0 kilogram. Find the magnitude of the torque about his shoulder if he holds his arm in each of the following ways?
(a) Straight out to his side, parallel to the floor
Nm
(b) Straight, but 45 degree below horizontal
Find the positions of the two masses at any subsequent time t (before either mass returns to the table) and describe the motion.
A passenger walks from one side of a ferry to the other as it approaches a dock.Passenger's velocity is 1.50 m/s due north relative to the ferry, What is the magnitude and direction of the ferry's velocity relative to the water
As our bodies burn food as fuel, we radiate energy. Assume a person has a body surface area of 1.80 m2, What is the power radiated by the person
An alert physics student stands beside the tracks as a train rolls slowly past. calculate the speed of the train
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. If a 700-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light in nm
A thin rod (length = 1.762 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. find the magnitude of the angular acceleration of the rod
The outside mirror on the passenger side of a car is convex and has a focal length of -5.4 m. Find the image distance of the truck
An electron (charge -e) is projected horizontally into the space between two oppositely charged parallel plates. The electric field between the plates is 462N/C upward.
Two 4.0 cm × 4.0 cm electrodes spaced 2.0 mm apart form a parallel-plate capacitor. What is the charge on each electrode
A recording engineer works in a soundproofed room that is 39.4 dB quieter than the outside. what is the intensity outside
question for each of the following molecules determine what atomic orbitals on the central atom are allowed by symmetry
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