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A resistance is connected to a AC source with an rms output of 12 V and a frequency of 60 Hz, the rms current is found to be 2.4 A. When a capacitor is connected in series in this circuit the current drops to 1.4 A. What are the following?
(a) The value of the resistance
(b) The impedance of the circuit at 60 Hz with the capacitor
(c) The capacitance of the capacitor.
A rock is thrown vertically upward from ground level at time t=0. At t=1.5s it passes the top of a tall tower. What is the height of the tower
You throw a ball vertically upward from the edge of the roof of the Bisdorf building with a speed 15.0 m/s. Find the position and velocity of the ball 1.00 s after leaving your hand
A 90 kg man lying on a surface of negligible friction shoves a67 g stone away from himself, giving it a speed of 4.0 m/s . Whats peed does the man acquire as a result
The drive propeller of a ship starts from rest and accelerates at 2.50 x 10-3 rad/s2 for 2.15 x 103 s. find the total angular displacement of the propeller
A rock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range R. At what angle is the rock thrown
A 700 gram ball moves in a vertical circle on a 1.07 meter long string. If the speed at the top is 4.10 m/s, then the speed at the bottom will be 7.67 m/s. Determine what is the ball weight
Discuss displacement versus distance moved for an object and illustrate with examples. Define Inertia and explain its consequences on motion
An example would be Otto Preminger's Anatomy of a Murder. It was filmed in 1959. The director was an Austrian born director named Otto Preminger. The score was provided by Duke Ellington. Etc.
A bicycle wheel of mass M (assumed to be concentrated at its rim) and radius R is mounted horizontally so it may turn without friction on a vertical axle. A dart of mass mo is thrown with velocity vo above and sticks in the tire.
The eyepiece of a refracting astronomical telescope (see the figure) has a focal length of 8.75 c. What is the angular magnification of the telescope
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
An object is located 12.5 cm in front of a convex mirror, the image being 6.90 cm behind the mirror. How far in front of the mirror is the second object located
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