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A stunt man drives a car at a speed of 20 m/s off a 34-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20°
A.) How far from the base of the cliff does the car land?
B.) What is the car's impact speed?
Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface. (a) What is the magnitude and sign of the excess charge, noting the electric field of a conducting sphere is equivalent to a point charge at i..
An object made of a single atomic element weighs 2.0000 N in air and 1.8965 N when completely submerged in water. What is the chemical symbol of the atomic element
For a damped oscillator with a mass of 240 g, a spring constant 59 N/m and a damping coefficient of 75.00 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 12 cycles.
A uniform 270N ladder rests against a perfectly smooth wall, making a 40.0? angle with the wall. What is the friction force on the ladder at the floor
an airplane flies in a loop a circular path in a vertical plane of radius 130 . the pilots head always points toward
A 1.5-V battery is connected in series with a 3.3-k? resistor, a 4.7-k? resistor, and a 1.0-k? resistor. Calculate the current (in mA) through and the voltage (in V) across each resistor
a sound wave traveling in 26 degrees C air has a pressure amplitude of 0.500 Pa. (assume that the density of air is 1.29 kg/m^3). What is the intensity of the wave
two equally charged particles held 4.2 x 10-3 m apart are released from rest. the initial acceleration of the first
A bullet weighing 0.08 lb is fired with a horizontal velocity of 1800 ft/s into the lower end of a slender 15-lb bar of length L= 30 in. Knowing that h = 12 in. and that the bar is initially at rest
A5.25-g block starts from rest at the top of a frictionless hillthat is inclined 21.0º with respect to the horizontal. The hill is125 m long. At the bottom of the hill, the surfaceis level and the coefficient of kinetic friction between thesurface an..
Suppose you aim to suspend in air a perfectly reflecting 4cmx4cm surface, with mass m = 0.00045kg. What intensity of light must you shine on it
A small conductive rod of length 2 m moves with a constant velocity v=17 m/s in a direction parallel to a long wire carrying a current of 26 A. The the axis of the rod is perpendicular to the direction of the wire and the distance between the wire an..
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