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The headlights on a certain car are gauged to be 1.2 m apart. The diameter of the pupil in a human eye is 2.5 mm. What is the furthest distance at which a human eye could obviously see the headlights as 2 separate lights? Use a wavelength of 521 nm/wave.
a 2.97-kg projectile is fired with an initial speed of 133 ms at an angle of 28deg with the horizontal. at the top of
A person swings a 0.521-kg tether ball tied to a 4.60-m rope in an approximately horizontal circle. what is the maximum angular speed of the ball
Katherine is attempting a biceps curl with a 100 N dumbbell. She is standing upright, and her forearm is horizontal. What torque is created by the dumbbell about the elbow joint
A tire is filled with air at 15°C to a gauge pressure of210kPa. If the tire reaches a temperature of38°C, what fraction of the original air must be removed
A hanging mass and the cylindrical, uniform, frictionless pullery have mass M. What is the acceleration of the hanging mass
A rectangular air mattress is 2.10m long, 0.48m wide and 0.09 m thick. If it has a mass of 2.30 kg, what additional mass can it support in water.
q1. consider a too-small space station that consists of a 3.1 m radius rotating sphere. a man standing inside is 2.0 m
Two loudspeakers in a plane, 6.0 apart, are playing the same frequency. If you stand 14.0 in front of the plane of the speakers, What is the frequency of the sound
a 2000 kg car intially moving at 20.0 ms suddenly slams on the brakes locks the tires and begins slidding. the
In a specific heat experiment 210.0 grams of aluminum (C=913.0 J/kg.K) at 100.0°C) is mixed with 36.0 g water at 20.0°C. Find the entropy change of the water
A proton travels with a speed of 4.90106m/s at an angle of65°with the direction of a magnetic field of magnitude0.240T in the positivex-direction. What is the magnitude of the magnetic force on the proton?
The temperature and pressure in a star's atmosphere are 6.40 multiply.gif 106 K and 0.0260 Pa. Calculate the rms speed of free electrons
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