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A string is attached to an overhead beam. If you put a mass of 170 gram on it, and it proceeds to stretch a distance of 7 centimeter, find what is the spring constant? Via the same spring, you apply a force that stretched the spring a distance of 20 centimeter. Find what is the magnitude of the downward acceleration? (Use units of meters/kilograms/seconds.)
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 61.5 kg and a radius R = 0.625..
The atomic planes in a crysral are spaced d = 0.50 nm apart. These planes are used in a diffraction experiment with X-rays with ? = 0.05 nm. What are the diffraction angles for the first three bright fringes
A block of mass 10 kg rests on a horizontal surface. The coefficient of sliding friction is 0.1. What is the mass of the pulley if it is a solid cylinder
An airplane's speed across the ground can be affected by the wind. how is the speed of the plane across the ground below affected
What is the longest wavelength of light that can be absorbed by a hydrogen atom that is initially in the second excited state
Boat sails at a rate of 5.0 m / s relative to the sea. He is aiming directly north, What will be the direction of the boat
developing a more realistic model the bioengineer models the acceleration of the snow petrl by an equation of the form
Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. What was your original speed
q1. a thin horizontal copper rod is .989696 m long and has a mass of 43.3758 g.the acceleration of gravity is 9.8
Two point charges Q1=+5.00 nC and Q2 =-3.00 nC are separated by 35.0 cm. What is the potential energy of the pair of charges
A flight attendant pulls her 72-N flight bag a distance of 265-m along a level airport floor at a constant velocity. The force she exerts is 44-N at an angle of 57° above the horizontal.
Monochromatic light shines on a diffraction grating. When the light source and the grating are in air, At what angle does the first-order maximum occur when the source and the grating are immersed in water (n = 1.32)
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