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A bicyclist rides 2.93 km due east, while the resistive force from the air has a magnitude of 8.55 N and points due west. The rider then turns around and rides 2.93 km due west, back to her starting point. The resistive force from the air on the return trip has a magnitude of 8.55 N and points due east. Find the work done by the resistive force during the round trip.
A copper wire and an aluminum wire of the same length have the same resistance. What is the ratio of the diameter of the copper wire to that of the aluminum wire
A car traveling 90km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance it travels during the third second.
The quantity of charge q (in coulombs) that has passed through a surface of area 2.08 cm2 varies with time according to the equation q = 4t3 + 5t + 6, What is the value of the current density
The work function for potassium is 2.24 eV. If potassium metal is illuminated with light of wavelength 300 nm
A resistor with R=300 ? and an inductor are connected in series across an ac source that has voltage amplitude 500 V. What is the amplitude of the voltage across the inductor
You are traveling in a convertible with the top down. How far has the car moved when you get a chance to catch the tomato
A hotel elevator ascends 273 m with a maximum speed of 3.78 m/s. Its acceleration and deceleration both have a magnitude of 0.91 m/s2. How long does it take to make the complete trip from bottom to top?
A piece of glass has a temperature of 85.8° C. Liquid that has a temperature of 43.0° C is poured over the glass, completely covering it, determine the specific heat capacity of the liquid
A box is sliding with a speed of 4.50 m/s on a horizontal surface when, at point P, it encounters a rough section. Use the work-energy theorem to find how far this box slides before stopping
When the flask and mercury are warmed together to a temperature of 52.0 degrees C , a volume of 8.35cm3 of mercury overflows the flask.If the coefficient of volume expansion of mercury is 1.8 * 10^-4 /K ,
A 3kg object attached to a spring oscillates on a smooth horizontal surface. calculate the spring force F(t) exerted on the object versus time t.
An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north.
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