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A 0.12 kg bullet traveling at 1129 mph hits a 6 kg block of wood and stays in the wood. What is the velocity (speed) of the wood block immediately after the bullet hits it?
Consider a tungsten filament in a light bulb. After the bulb has been on for an hour, how has the resistance in filament changed (if at all).
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
Calculate the rotational inertia of the pendulum about the pivot. What is the distance between the pivot and the center of mass of the pendulum? ( m) Calculate the period of oscillation.
A small object with a mass of 380mg carries a charge of 20.0 nC and issuspended by a thread between the vertical plates of aparallel-plate capacitor. what is the potential difference between the plates
The equilibrium separation between the nuclei of the nitrogen molecule (N2) is 0.110 nm and the mass of each nitrogen nucleus is 14.0 u, where u = 1.66 x 1027 kg. For rotational energies, the total energy is due to rotational kinetic energy.
A railroad car containing explosive material is initially traveling south at a speed of 4.5 m/s on level ground. The total mass of the car plus explosives is 2.5 104 kg. what is the final speed of the other piece
Find the total power radiated out into space by the Sun assuming it to be at a temperature of 5500 K and the emissivity is 1
A piece of concrete measures 3 ft by 3 ft by 1.25 ft. What is the net force on the concrete piece when it isunder water
Find out vertical and horizontal components of the pendulum
A penny is placed at the outer edge of a disk radius = .150 m that rotates about an axis that is perpendicular to the plane of the disk at the center. The period of the rotation is 1.80 s. Find out the minimum coefficient of friction neccesary to..
A parallel-plate capacitor is constructed with circular plates of radius 6.5×10?2m . The plates are separated by 0.27mm, Find the value of the dielectric constant, k
Two spherical objects with a mass of 8.05 kg each are placed at a distance of 2.31 m apart. How many electrons need to leave each object so that the net force between them becomes zero
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