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A person driving her car at 46.0 km/hr approaches an intersection just as the traffic light turns yellow (see figure below). She knows that the yellow light lasts only 1.60 s before turning to red, and she is a distance D = 28.0 m away from the near side of the intersection. If she decides to stop, how far from the intersection will she come to a stop? The intersection is W =11.0 m wide. Her car's maximum deceleration is -5.50 m/s2. Ignore the length of her car and her reaction time. Assume the beginning of the intersection the origin of your x-coordinate and take distances beyond the intersection to be positive and distances before the intersection to be negative. The car can accelerate from 46.0 km/hr to 69.0 km/hr in 6.50 s. How far from the intersection will she be when the light turns red?
The light then passes through an analyzer at an angle of 22.5º to the polarizer. What is the intensity of light leaving the analyzer
The half-life of iodine-131, an isotope used in the treatment of thyroid disorders, is 8.04 days. what is the activity of the sample
The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. find the magnitude of the electric field in the membrane
Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. find the angular speed of the neutron star
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question1an airplane starting from airport a flies 300 km east then 305 km at 24.5deg west of north and after that 150
Determine the tension in each string
A yo-yo of mass 0.10kg and a radius of 0.03 m is released from rest, with the free end of the yo-yo string held fixed. Find the acceleration of the yo-yo
A speed skater moving across frictionless ice at 8.80 hits a 4.20-m-wide patch of rough ice. What is her acceleration on the rough ice
A laser beam of wavelength 580nm is incident normally on a transmission grating having 410lines/mm
find the magnitude of the baseballs momentum.
A 50 kg projectile is fired over level land at an angle of 30 degrees above the horizontal with a muzzle velocity of 210 m/s. At the highest point in its trajectory it explodes into two fragments, one of twice as much mass as the other. The less m..
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