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A 10.2-g bullet is fired into a stationary block of wood having mass m = 5.01 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.590 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.)
Suppose in the drawing that I1 = I2 = 13.6 A and that the separation between the wires is 0.0244 m. What is the magnitude of the external field
A resistor of 2 ? and another of 3 ? are connected in parallel, and this combination is joined in series with a 4-? resistor across a battery. what is the potential drop across the 3-? resistor
An airplane whose air speed is 608 is supposed to fly in a straight path 38 north of east. But a steady 86 wind is blowing from the north. In what direction must the plane head.
The concrete wall of a building is 0.11 m thick. The temperature inside the building is 23.2°C, while the temperature outside is 0.0°C. Heat is conducted throughout the wall.
A solid disk (r=0.20 m, M=0.50 kg) is suspended fro the end of an L=0.30m long rod (m=0.30 kg, cross-sectional area of 2.0 cm^2). WHAT IS THE PENDULUM'S PERIOD FOR SMALL ANGLE OSCILLATIONS
An R = 49.8 ? resistor is connected in series with a C = 12.1 ?F capacitor and a 105 Hz, 110 V source. Calculate the current in the circuit
Light of wavelength 653.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 83.5 cm from the slit. obtain the width of the slit
"Calculate the gravitational potential energy at the surface of the sun. How much would the sun have to shrink each second in order to generate the Luminosity of the sun just by converting gravitational potential energy?" The hint my teacher gave ..
A parallel plate capacitor with 4.0 mm plate spacing has circular plates and holds a charge of +/- 6 uC on each plate when it is charged to a potential of 100 V. What is the radius of the plates
In a particular Millikan oil-drop apparatus, the plates are 2.25 apart. The oil used has a density of 0.845 , how many excess electrons did it contain
Explain qualitatively the following phenomena. At a certain momentum, the cross sections for p+_ neutron s(p+n) and p-_ proton s(p-p) interactions are equal, whereas s(K+n)=22mb and s(K-p)=55mb.
A ring of radius R has uniform charge per unit lenght ? C/m (?>0), and z is the dince along its axis. Explain why the electric field must be zero at the center of the ring
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