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A pendulum swinging in a circular arc under the influence of gravity, has both centripetal and tangential components of acceleration.
A) If the pendulum bob has a speed of 2.4m/s when the cord makes an angel of theta=15 degrees with the vertical, what are the magnitues of the components at this time? (Express answers using 2 sig figs and use a comma to separate... ac, at)
B) Where is the centripetal acceleration a maximum? (degrees from the vertical)
C) What is the value of the tangential acceleration at that time? (m/s^)
Which kind of research is Professor Carter employing.
In each cycle of its operation, a refrigerator removes 8 J of heat from the inside of the refrigerator and releases 22 J of heat into the room. How much work per cycle is necessary to operate this refrigerator.
The mass of an object is 332 g, and its volume is determined to be 25 cc. What is the mass density of the object
A swimming pool has dimensions 32 m 9 m and a flat bottom. The pool is filled to a depth of 1.50m with fresh water. What is the force exerted by water on the bottom.
An archer shoots an arrow with a velocity of 45.0 m/s at an angle of 50.0° with the horizontal. An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the least initial speed necessary to m..
A thin 320g disk with a diameter of 5.20 cm rotates about an axis through its center with 0.705J of kinetic energy. What is the speed (in m/s) of a point on rim.
What is the turntables angular speed as the block
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A wave of amplitude 0.40 m interferes with a second wave of amplitude 0.3 m traveling in the same direction. (a) What is the largest resultant amplitude that can arise.
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of the book are vertical to the book and are horizontal.
The loaded cab of an elevator has a mass of 3.00 multiplied by 103 kg and moves 171 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
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