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The headlights of a pickup truck are 1.33 m apart. What is the greatest distance at which these headlights can be resolved as separate points of light on a photograph taken with a camera whose aperture has a diameter of 12.4 mm? (Take = 555 nm.)
A set of 20 stairs, each of 20-cm height, is ascended by a 700 N man in a period of 1.25 s. Compute the mechanical work, power, and change in potential energy all through the ascent. I have 2800J. Where do I go from here.
The output voltage of an AC generator is given by ?v = (190 V) sin (70?t). The generator is connected across a 12.0-? resistor. Find the power delivered to the resistor
A photon with wavelength 0.02680 nm strikes a free electron that is initially at rest. What is the energy of the scattered photon
he triceps muscle in the back of the upper arm extends the forearm. What is the moment of inertia of the boxer's forearm
A 150 ohm resistor is connected in series with a 0.250 H inductor. The voltage across the resistor is VR = 3.80 cos (720t) Volts. Derive an expression for the voltage VL across the inductor
A horizontal piston-cylinder assembly contains 0.25 kg of an ideal gas (M=28.97 kg/kmol) of constant heat capacity (Cp=1 kj/kg*k and Cv=0.72 kj/kg*k), How much heat is transferred during this process
A hollow metal sphere has inner radius a, outer radius b, and conductivity sigma. Evaluate the electric field strength at the inner surface of a copper sphere if 0.70cm and 28A
You are arguing over a cell phone while trailing an unmarked police car by 26.0 m; both your car and the police car are traveling at 120 km/h. what is your speed (in km/h) when you hit the police car
A uniform 34.5-kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end, Find the force that the column exerts on the right end of the beam
An alpha particle (the nucleus of a helium atom formed by 2 protons and 2 neutrons, What would be the force on the alpha particle if it were traveling parallel to the magnetic field lines
A 65.0 kg human sprinter can accelerate from rest to 10 m/s in 2.90 s. all through the same interval, a 33 kg greyhound can accelerate from rest to 20 m/s. calculate (a) change in kinetic energy and (b) average power output for each.
A 7.0 k resistor is in series with a 26.0-mH inductor, Calculate the impedance of the circuit for the following source frequencies
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