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You are driving a car at the 25-mi/h speed limit when you observethe light at the intersection 70 m infront of you turn yellow. You know that at that particularintersection the light remains yellow for exactly 4.0 s before turning red. After you think for 1.0s, you then accelerate the car at a constant rate. You somehowmanage to pass your 4.7 m carcompletely through the 15.0 m wide intersection just as the lightturns red, thus narrowly avoiding a ticket for running a red light.Immediately after passing through the intersection you take yourfoot off the accelerator, relieved. However, down the road you arepulled over for speeding. You assume you were ticketed for thespeed of your car as it exited the intersection. Determine thisspeed and decide whether you should fight this ticket in court.
How fast were you going as you exited the inter section?
a 2.95 block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0380 . the spring
A 0.140 kg baseball is thrown with a velocity of 26.2 m/s. It is struck with an average force of 500.0 NM which results in a velocity of 37.0 m/s in the opposite direction
Unpolarized light of intensity Io passes through a Polaroid with its transmission axis vertically oriented. what fraction of the original incident light intensity Io emerges
A car is traveling at 27 m/s when the driver spots a large pothole in the road a distance 44 m ahead. She immediately applies her brakes. If her acceleration is -9.7 m/s2, does she arrange to stop before reaching the pothole.
A small sphere of mass m = 6.10 g and charge q1 = 29.2 nC is attached to the end of a string and hangs vertically. A second charge of equal mass and charge q2 = 58.0 nC is located below the first charge a distance d = 2.00 cm below the first charg..
An electron and a proton each have a thermal kinetic energy of 3×kBT/2. Compute the de Broglie wavelength of each particle at the temperature of 2050 K. (kb is Boltzmann's constant, 1.38×10-23 J/K).
Find the minimum volume of concrete (y = 23.6 kN/m3) needed to keep the gate (1 m wide) in a closed position; l = 2 m. Note the hinge at the bottom of the gate. Explain briefly.
Four rays of light are incident on a surface of water. Their angles of incidence are 20, 30, 45, y 60 degrees. Calculate the angle of refraction for each ray
A 1200kg pick up truck traveling south at 15m/s collides witha 750kg car traveling east. what was the speed of the car just before the collision
A transverse periodic wave described by the expression y= 5sin(pi*x/3 - 30*pi*t) is established on a string. What is the length in meters of the string
A boat that travels at a speed of 6.75 m/s in still water isto go directly across a river and back . The current flows at 0.50m/s. At what angle(s) must the boat be steered
question one end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates the
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