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Assume that the tetherball has a mass 2 kilogram and the radius of the circle is 40 centimeter, and the angle between the cord and the vertical is 30o. Find the velocity of the ball and the tension in cord.
The drawing to the left shows a mass m= 1.5 kg hanging from a spring with spring constant k = 10 N/m. What is the time required for the amplitude of the resulting oscillations to fall to one third of its initial value
the record distance in the sport of throwing cowpats is 81.1 m. assuming the initial launch angle was 45deg and
Light from a sodium lamp with a wavelength in a vacuum of 590 nm enters diamond in which the speed of light is 1.24 108 m/s. What is the wavelength of this light in diamond
The rod with mass m is sliding with velocity v on the contacts. The B field is going through the page. Find the acceleration of the rod and the currents through the circuit
After the interaction, the particles (which can't be distinguished) are observed moving at angles 55.3° and 34.7°, both angles being measured with respect to the original direction of motion. Illustrate what are the final speeds of the particles?..
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. estimate the diameter of the pinhole
A guitar string has a length of .8 m. If the wave speed ofthe spring id 560m/s, what is the frequency of the sixth harmonic
A series LR circuit with L = 20 mH and R = 2.0 k? is connected to a potential source of amplitude 5.0 V and angular frequency 200 rad/s. find the voltage across the resistor and the inductor
an arrow is shot from the edge of a cliff downward at an angle of 30 degrees below the horizontal. as it falls how does
A ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 1.3 cm . As the gondola comes to the end of its run, What is the speed of the pulse
a beam of polarized light strikes two polarizing sheets.The characteristic directions of the second is 90 degree with respect to incident light. Find angle betta for a transmitted beam intensity that is 0.10 times the incident beam intensity
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