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A capacitor is attached to a 5.00 Hz generator. The instantaneous current is observed to reach a maximum value at a certain time. What is the least amount of time that passes before the instantaneous voltage across the capacitor reaches its maximum value?
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm. What is the period of the oscillation
q1. a car moving with an initial velocity of 27 ms slows down at a constant rate of -2 ms2 for 3 seconds what distance
q1. suppose a constant ratio of 13.60 counts per minute per gram of living matter. a sample of a petrified tree was
A test charge of +2 micro C is placed halfway between a charge of +6 micro C and another +4 micro C sperated by 10cm. what is the magnitude of the force on the test charge
A parachutist and her parachuting equipment have the combined mass of 121 kg. Her terminal velocity is 5.30 m/s with the parachute open. Her parachute has a cross-sectional area of 35.80 m^2. The density of air at that altitude is 1.23kg/m^3. What is..
What is the average value of the orbital angular momentum, L, for the hydrogen atom if the electron is in the 3d orbital? Note that the average value of L can be written as = ^(1/2).
A small solid sphere, with radius 0.25 cm and mass 0.70 g rolls without slipping on the inside of a large fixed hemisphere with radius 23 cm and a vertical axis of symmetry. What is its kinetic energy at the bottom
The vertical displacement due to a travelling wave moving horizontally is given by y(x,t) = 5.4cos(.4(rad/s) t (sec)) where x and y are in centimeters. The horizontal distance between the points whose phase differs by pi/3 is A. 1.05 cm B. 2.62 cm C...
a lens of focal length 1500 mm is used to project an image of the sun. If the sun subtends an angle of .50, what is the diameter of the image
An ideal gas in a piston is placed in a refrigerator, which removes 686 J of energy from the gas via cooling. find the net change in the internal energy of the gas in the piston
The temperature of the Sun's photosphere is. Isotopes of a particular element in the periodic table have which nuclear property in common. Granulation on the surface of the Sun is caused by
A wood block, after being given a starting push, slides down a wood ramp at a constant speed. What is the angle of the ramp above horizontal
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