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A truck of mass 9312 kg moving at a speed of 68.7 mph has lost its brakes. Fortunately, the driver finds a runaway lane, a gravel-covered incline that uses friction to stop a truck in such a situation; see the figure. In this case, the incline makes an angle of ? = 21.15° with the horizontal, and the gravel has a coefficient of friction of 0.634 with the tires of the truck. How far along the incline (?x) does the truck travel before it stops?
A 0.75 H inductor is in series with a fluorescent lamp, and the series combination is across the 120 V rms, 60 Hz power line. Calculate the resistance of the lamp
A "U" shaped tube (with a constant radius) is filled with water and oil, What is the absolute pressure in the water at the very bottom of the tube
Electrons accelerated by a potential difference of 12.86 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the longest possible wavelength
A series AC circuit contains a resistor, an inductor of 230 mH, a capacitor of 4.30 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. obtain the phase angle between the current and the source voltage
a spherical shell of radius r carries a uniform charge q. what is the potential at the center of the
The potential for a mass hanging from a spring is V(y)=ky^2/2+mgy, when y=0 corresponds to the position of the spring when nothing is hanging from it. Find the frequency of small oscillators around the equilibrium point.
A 4.90-kg ball, moving to the right at a velocity of +2.14 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
You have an uncharged capacitor (12 x 10-6 F) and a resistor (1000 ohms) connected to a battery of 200 V at time t=0, What is the final charge on the capacitor
A 120-turn coil is coaxial with a solenoid of 220 turns/cm. What current is induced in the coil during the 25.0 ms
When a force of 3 N was applied, the speed of an object was increased from 20 m/s to 50 m/s in 2 seconds. What is the mass of this object
A proton is located at y=0.06m and has a velocity of 5x10^6 m/s in the +x direction while an electron is located at x=0.08m, What is the magnetic field generated by these two charges at the origin
A man lifts a 2.7-kg stone vertically with his hand at a constant upward acceleration of 1.7 m/s2. What is the magnitude of the total force of the stone on the man's hand
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