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A simple pendulum (L = 1.20 m) has a mass of 20.0 g at its end.
a) Calculate the period of oscillation of this simple pendulum.
b) Suppose the mass is melted and reformed into a uniform rod (a physical pendulum) so that the period is the same as the simple pendulum. Determine the length of the physical pendulum.
A 1,720 Hz pure tone is played on a stereo in an open field. A person stands at a point that is 4 m from one of the speakers, Does the person hear the tone
An ideal battery of emf = 16 V, a resistor of resistance R = 4.4 Ω, and an uncharged capacitor of capacitance C = 6.1 μF. After switch S is closed, what is the current through the resistor when the charge on the capacitor is 8.8 μC?
In and 8.00 km race, one runner runs at a steady11.0 km/h and another runs at 14.0 km/h. How far from the finish line is the slower runner
A 17.9-cm focal-length lens is used to project 35-mm slides onto a screen 4.27 m from the projector lens. What must be the size of the screen if the image of the slide is to just fill the screen? The dimensions of the image on the slide are 23.5 m..
A 5.0 g hollow plastic ball is attached by a thread to the bottom of a beaker. When the beaker is filled with water so that the ball is completely submerged, the tension in the thread is 2.0 multiplied by 10-2 N. Decide the diameter of the ball.
A 9kg block is connected by a string over a light pulley to a 5kg block that is sliding over a flat table (i.e. the 9kg is pulling the 5kg off the table). If Co-efficient of kinetic friction is 0.200, find the tension in the string.
A person throws a ball straight up. He releases the ball at a height of 1.75 m above the ground and with a velocity of 12.0 m/s. Ignore the effects of air resistance. (a) How long until the ball reaches its highest point? (b) How high above the gr..
two point charges, seperated by 1.5 cm have charge values of +2.0, What is the value of the mutual force between them
A race car starts from rest on a circular track of radius 690 meter. The car's speed increases at the constant rate of 0.400 m/s2, estimate the elapsed time
A partial with a mass of 2.0 x 10-5kg and a charge of +2.3 micro-coulomb is released in a (parallel plate) uniform horizontal electric field of 14N/C. What is the horizontal component of its velocity at that point
An observer in reference frame S notes thattwo events are separated in space by 220m and in time by 0.85 micro seconds. How fast must reference frame S' be movingrelative to S in order for an observer in S' to detect the two events as occuring at ..
At an water park, a girl slides down a water slide into the main pool. determine what her speed at the bottom of the slide
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