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A car moving at 78mi/hr approaches a yield sign 70m ahead. The driver slows the car with a constant acceleration of -4.5m/s2 by hitting the brakes. How long does it take the car to reach the yield sign?
A 2.61e-6 F capacitor is charged to 1270 V and a 6.58e-6 F capacitor is charged to 420 V. what will be the potential difference across each
During the pitching motion, a baseball pitcher exerted an average horizontal force of 60 N against the 0.15 kg baseball while moving it through a horizontal displacement of 2.0 m before he released it
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, find the location of the coins final image
When an object is placed 15 cm in front of a thin lens, a virtual image is formed 5.0 cm away from the lens, Calculate the location of the final image
must include free body diagrams with applications of newton's 2nd law 1) a 3.0 kg ball is attached to two pieces of string, compute the tension in the upper string
A 50 kg diver has an angular velocity of 6 rad/s about her medial-lateral axis of rotation when she leaves the board in a layout position, what is her radius of gyration in the tuck positions
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
A hydrogen atom initially in its ground state absorbs a photon and ends up in the n=6 state. Calculate the energy of the incident photon
A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration.
Write the expression of the force fl j corresponding to the Uu potential energy term. Derive the expression of the distance r m i n at which Uu has its minimum value, as a function of the parameters a and/or E.
A simple pendulum in a science museum entry hall is 3.51m long, has a 1.25kg bob at its lower end, and swings with an amplitude of 10.50 degrees. How much time does the pendulum take to swing from its extreme right side to its acute left side.
Three forces in the x-y plane act on a 5.5 kg mass: 10.3 N directed at 37°, 12.2 N directed at 128 °, and 4.1 N directed at 201° . Calculate the direction of the resultant force
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