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You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.56 s, and the velocity of the car decreases to + 4.62 m/s. The car's deceleration has a magnitude of 2.80 m/s2 during this time. What is the car's displacement?
What should be the spring constant of a spring designed to bring a 1500 car to rest from a speed of 80 so that the occupants undergo a maximum acceleration of 5.
A student sits on a swivel seat. Initially the student is at rest, holding a spinning bicycle wheel that has an angular velocity of 10.5 rad/s, Find the student's final angular velocity
An astronomical telescope is designed with an overall magnification of 45x. The objective has a focal length of 84.0 cm. What should be the focal length of the eyepiece
A 16 kg rock, m, is on the edge of a 90 m cliff, h, as shown in Figure 11-20. Assume that air resistance is negligible. What speed does the rock have as it strikes the ground
Two bumper cars are driving directly toward one another. The first car, mass m1 = 150 kg, What is the total momentum of the system
A 32cm string being held at a tension of 64.5N has a fundamental frequency of 440Hz. What are the second and third harmonics of the string
A subway train has a sound intensity level of 90 dB, and a rock band has a sound intensity level of 110 dB. How many times greater is the sound intensity of the band than that of the train
A tube of radius 5cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×10^5 Pa. The density of water is 1000kg/m3. Suppose that the water is no visco..
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
A 12 volt battery is connected to a 2.0 x 10^-5 farad capactior. calculate the amount of charge on one plate of the capacitor.
The velocity of a particle is v(t)=k, 0 (less than or equal)
n a circuit, a current of 4A is drawn from a battery. The current then divides, What is the value of the other resistor
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