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A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N.a) What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)a)vmax=4.79 m/sb) If two other strings identical to the first were attached to the rock, how fast could the rock be whirled before the three strings would break?b)4.79*3^.5=8.3m/sNext the rock is held by two of the same 45 cm strings with ends 57 cm apart and whirled in a circle between them. Neglect gravity.c) What is the radius of the circle of motion?d) Now what is the maximum speed the rock can have before the string breaks?
A 3.50 %u03BCC point charge is placed at the center of a conducting spherical shell. What is the surface charge density (C/m2) on the outer surface
Two identical brass balls mounted on wooded posts initally have different amounts of charge, one +3uC and the other +15uC. What is the final charge in each ball
A hydrogen atom initially in its ground state absorbs a photon and ends up in the n=6 state. Calculate the energy of the incident photon
A photoelectric experiment using a cesium metal surface produces stopping potentials of 0.95V and 0.38V using light with wavelengths of 435.8nm and 546.1nm, respectively. find the threshold frequency
The truncated form of the virial equation is P(VB) = RT , where B is a constant that depends only on temperature. Derive the expression for reversible isothermal work for a gas that obeys this equation of state.
What is the direction of this velocity. What is the magnitude of the velocity.
To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. How much work does the mat do to stop the fall of the cylinder
When it passes point A, its velocity is 3.5 m/s directed as shown. The distance AP is 0.6 m and BP is 1.0 m. Find out the speed of the mass at points B and C.
The position of a particle moving along the x axis depends on the time according to x=ct^2-bt^3 where x is in meters, what distance does the particle move and what is its displacement
question1two dogs pull horizontally on ropes attached to a post angle problem 1 between the ropes is 60.0 degrees. if
Amber (n = 1.546) is a transparent brown-yellow fossil resin. An insect, trapped and preserved within the amber, How far below the surface is the insect actually located
define the magnitude of the initial velocity. use 9.81 m/s^2 for the acceleration due to gravity on earth.
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