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A solid cylinder of mass 10 kg is pivoted about a frictionless axis thought the center O. How many radians does the cylinder rotate through in the first 5.0 seconds, if it starts from rest
A wheel that is rotating at 45 Rad/s is give an angular acceleration of 3 Rad/s (sqrd). Use gravity: 10 m/s, how long is the angular velocity of the wheel
A laboratory electromagnet produces a magnetic field of magnitude 1.54 T. Find the magnitude of the maximum magnetic force that could be exerted on the proton
A 8000 %u03A9 resistor is joined in series with a 10 %u03BCF capacitor. What is the capacitive time constant of this combination
A stick with a length of 1m is supported by a knife edge at the 50 cm mark (middle). Two masses m1: 0.4 kg and m2: 0.6 kg are hanging.. m1 20 cm from the left end, Calculate the torque created by m1
A particle known as a pion lives for a short time before breaking apart into other particles. what is the lifetime according to a hypothetical person who is riding along with the pion
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
A person sees a distant lightning strike, then 4.5 seconds later he hears the thunder clap. If it is 35 degrees Celsius, how far away was the lightning strike
A transverse traveling wave on a cord is represented by D = 0.25 sin (6.8x + 28t) where D and x are in meters and t is in seconds. Determine maximum and minimum speeds of particles of the cord
A 3.45 kg mass vertically compresses a spring 67.0 cm before it starts to rebound. How high will the Mass move above the uncompressed
A resistance of ohms ,an inductive reactance of 8 ohms and capacitive reactance of 15 ohms are connected in parallel across 120V, Find total current , power factor
A 10 kg crate (begins 3m off the ground) slides along a smooth horizontal frictionless surface at a constant speed of 4 m/s. What is the kinetic energy as it slides on the upper surface
A stunt pilot with mass of 80 kg performs a vertical circular dive of radius 800 m. What forces are acting on the pilot
A wheel has a maximum rate of rotation of 150 revolutions per minute. Starting from rest, Calculate the magnitude of its angular acceleration
An automobile cooling system holds 16 L of water. How much heat does it absorb if its temperature rises from 20C to 86C
An AC generator supplies an rms voltage of 115 V at 50.0 Hz. It is connected in series with a 0.500 H inductor, What is the rms current through the resistor
The 1.20kg head of a hammer has a speed of 8.1m/s just before it strikes a nail and is brought to rest. Estimate the temperature rise of a 14gg iron nail generated by 5.0 such hammer blows done in
In the deep space between galaxies, the density of atoms is as low as 1X10^6 atoms/m^3, and the temperature is a frigid 270 K. If this volume is a cube, what is the length of its sides in kilometers
Neutrons (RBE = 3.4) and %u03B1 particles have the same biologically equivalent dose. What is the RBE for the %u03B1 particles
Calculate the first-excited state energy (in eV) for an electron in a box (an infinite well) having a width of 0.050 nm
A 9.0 V battery and three resistors are all connected in series. What is the potential difference across the third resistor
Consider a rectangular loop of wire 6.8cm by 7.8cm in a uniform magnetic field of magnitude 1.4T. What is the average induced emf in the loop
Threshold freq. of metal isf0. When the light of freq. 2f0 is incident on the metal max velocity of electrons is v1 and v2
In 2.8 days the number of radioactive nuclei decreases to one-eighth the number present initially
A certain superconducting magnet in the form of a solenoid of length 0.520 m can generate a magnetic field of 9.10 T in its core when its coils carry a current of 80 A