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On a day when a thunderstorm is brewing, there could be a vertical electric field of magnitude of 2.00×104 N/C. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a dry gravel roadway sloping downward at 10.0°. Calculate the electric flux through the bottom of the car.
A disk with a radius of 1.5 m whose moment of inertia is 34 kg · m2 is caused to rotate by a force of 160 N tangent to the circumference
An oil film with n = 1.45 floats on water. It is illuminated by white light from the sun at noon. If the film is 280 nm thick, find the wavelength and color of visible light that is most strongly reflected upward to an observer positioned above th..
A roofer accidently drops a bundle of shingles. If it hits the ground with a speed of 86 m/s, how fast was it moving 3 seconds earlier (g=10 m/s/s)
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
A challenge gaining prominence throughout the planet is the increased need for \"green\" or sustainable energy. In certain parts of the country, how much energy does the wind turbine generate
question1an old oaken buck of mass 6.75 kg hangs in a well at the end of a rope. the rope passes over a frictionless
A baseball pitcher pivots his extended arm about his shoulder joint, applying a constant torque of 190 N · m for 0.21 s to his arm, What is his arm's angular acceleration and final angular velocity
Two small metallic spheres, each of mass 0.20 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
Suppose0.430kg of water initially at39.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. Calculate the final equilibrium temperature of the system
Use the simulation in the cannon interactive in this section to answer the following questions. (a) Does cannonball's horizontal velocity change as it moves through the air? (b) Does its vertical velocity change? (c) If you enhance the cannonball's h..
A certain elevator cab has a total run of 190 m and a maximum speed of 305 m/min, and it accelerates from rest and then back to rest at 1.22 m/s2. How long does it take to make the nonstop 190 m run, starting and ending at rest
A pen contains a spring with a spring constant of 251 N/m. How much work is done by the spring force to ready the pen for writing
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