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A railroad flatcar is traveling to the right at a speed of 13.0 m/s relative to an observer standing on the ground. Someone is riding a motor scooter on the flatcar. (Assume the positive direction is to the right.)
(a) What is the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is 18.0 m/s to the right? (Enter a negative value if the velocity of the flatcar is to the left.) in m/s
(b) What is the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is 6.0 m/s to the left? In m/s
(c) What is the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is zero? In m/s
A charge of +1.80 mC is located at x = 0, y = 0 and a charge of -4.09 mC is located at x = 0, y = 3.16 m. What is the electric potential due to these charges at a point with coordinates x = 4.09 m, y = 0.
Consider the chemical reaction given. The initial concentrations of CO(g) and H2O(g) 0.35 M and 0.40 M respectively, What is the value of the equilibrium constant for this reaction
A stone is thrown from the top of a cliff 150 m above the ground, What is the speed (magnitude of velocity) of the stone when it hits the ground
Early black-and-white television sets used an electron beam to draw a picture on the screen. The electrons in the beam were accelerated by a voltage of 3.0 kV, What is the speed of electrons in the beam
A Ferris wheel with a radius of 7.7 m rotates at a constant rate, completing one revolution every 37 s, Find the direction and magnitude of a passenger's acceleration when at the bottom of the Ferris wheel
Ann was reaching up to grab a box of cereal that was on top of the refrigerator. She had extended her arm as well as stood on her tip-toes to reach the box. Which primary muscle allowed Ann to extend her elbow and which 2 primary muscles allowed h..
A 40 percent efficient electric power plant produces 900MW of electric power and discharges waste heat into 30 C ocean water. Suppose the waste heat could be used to heat homes during the winter instead of being discharged into the ocean. A typical A..
The spring of the pressure gauge has a force constant of1000 n/m and the piston has a diameter of 2.00 cm as the gauge is lowered into water, what change in depth causes piston to move in by 0.50 cm.
A pipe open only at one end has a fundamental frequency of 282Hz. A second pipe, initially identical to first pipe, is shortened by cutting off a portion of the open end.
The density of free electrons in gold is 5.90 x 10^28 m-3. The resistivity of gold is 2.44 x 10-8 at a temperature of and the temperature coefficient of resistivity is 0.004 ()-1. A gold wire, 1.30mm in diameter and 27cm long, carries a current of..
How high is the top of the ski lift relative to the base.
The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a factor of approximately
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