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Three identical (massless) springs are hung from the ceiling.
Spring 1: Nothing hung from spring. The spring's bottom is0.2 m below the ceiling.
Spring 2: A 5 N object is hung from the spring. The spring's bottom is 0.6 m below the ceiling.
Spring 3: An object of unknown weight is hung from the spring. The spring's bottom is 0.8 m below the ceiling.
a) Discover the spring constant that each spring has in. __________ N/m
b) Discover the weight of the unknown object._________ N
Two physical pendulums ( not simple pendulum) are made from sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except one is made of wood (mass = 0.17 kg )and the other of metal (mass =..
You place a penny on a turntable at a distance of 8.0 cm from the center. How long after you turn on the turntable will the penny begin to slide off of the turntable
a charge of -2.510 uc is located at 2.600m 4.259m and a charge of 1.770 uc is located at -2.666m 0.part afind the
An adventurous crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stop to rest at the middle of the rope. The rope will break if the tension in it exceeds 2.50x10^4 N, and our hero's mass is 9..
The radius of curvature of a convex mirror is 1.60 x 10^2 cm. An object that is 14.0 cm high is placed 40.0 cm in front of this mirror. Find out (1) the location and (2) the height of the image.
Use the following values for mass and charge: an electron has mass me = 9.11x10-31 kg and charge -e, a proton has mass mp = 1.67x10-27 kg, What is the kinetic energy of the electron
a pipe tapers from a diameter of 0.5 m at the inlet to a diameter of 0.25 m at the outlet and turns by an angle of 45
A fireworks rocket explodes at a height of 100 m above the ground. What is the total sound energy of the explosion
A 250g , 30.0-cm-diameter turntable rotates on frictionless bearings at 62.0 rpm . A 22.0 g block sits at the center of the turntable. A compressed spring shoots the block radically outward along a frictionless groove in the surface of the turntable...
a stone is projected at a cliff of height h with an initial speed of 49.0 m/s directed at an angle ?0 = 63.0° above the horizontal. The stone strikes at A, calculate the speed of the stone just before impact
A marble (radius 0.6 cm and mass 4.0 g) rolls without slipping down a ramp of vertical height 10 cm. What is the speed of the marble when it reaches the bottom of the ramp
A spaceship negotiates a circular turn of radius 2680 km at a speed of 30540 km/h. What is the magnitude of theangular velocity? What is the magnitude of the radial acceleration?
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