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A ball swings in a vertical circle at the end of a rope 1.30 m long. When the ball is 37.3 ° past the lowest point on its way up, its total acceleration is (âˆ'22.5 i + 20.2 j ) m/s2. For that instant, do the following.
(a) Sketch a vector diagram showing the components of its acceleration.
(b) Determine the magnitude of its radial acceleration.
(c) Determine the speed of the ball.
(d) Determine the velocity of the ball - Give the magnitude and direction.
Four particles, one at each of the four corners of a square with 3m-long edges, are connected by massless rods. The masses of the particles are m1 = m3 = 4kg and m2 = m4 = 5kg. Determine the moment of inertia of the system about the z axis.
In a photoelectric effect experiment, visible radiation is incident upon a metal of work function 1.05 eV. What is the wavelength of the incident radiation
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 50.0 ?A. What is the current density in the electron beam
a skier of mass m is standing on a slope with an angle of elevation ø. After being given a tiny nudge, the skier slides down the slope, how much energy is lost while the skier slides down the incline
A 21 g bullet travelling at 255 m/s is fired into a 0.452 kg wooden block anchored to a 100 N/m spring. How far is spring compressed to the nearest thousandth of a meter.
A monkey shows symptoms of being under the influence of too much physics. Specifically, What is the final angular speed of the monkey's head
Nobel laureate Richard Feynman (1918-1988) once said that if two persons stood at arm's length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a "weight" equal to that..
A pair of long rods, each of length L and mass M are connected to a hoop of mass M and radius L/2 to form a 4-spoked wheel. Determine the instantaneous velocity of the mass after the wheel has turned one revolution
Suppose a uniform magnetic field B is applied perependicular to the plane of a semicircular loop of radius R and a current through the loop is I
A person with nearsightedness was prescribed with contact lenses of power -2.0 D. What is the range of object distances that this person can see clearly with the wrong lenses
A charge of +2q is fixed to one corner of a square, while a charge of -1q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of square, so the potential is zero at each of the two empty c..
A system has a heat source supplying heat at a rate of 187 W, At what rate is the internal energy of the system changing
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