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Question: When you normally drive the freeway between Sacramento and San Francisco at an average speed of 115km/hr (71.5 mph), the trip takes 1.00hr and 13.0 min. On a Friday afternoon, however, heavy traffic slows you down to an average of 100km/hr (62.1 mph) for the same distance.
Part A: How much longer does the trip take on Friday than on the other days?
If possible just a brief explanation how you got the answer?
two identical metal spheres a and b are connected by a plastic rod. both are initially neutral. 4.0times1012 electrons
Suppose all temperatures to be exact, and neglect important figures for small changes in dimension. An ideal gas in a cylinder is at 5c and 5.0atm. If it is heated so its rms speed increases with 20m/s, what is its new pressure?
a 10 kg box is pushed along a frictionless horizontal surface by a horizontal force of 50n. if the box starts from rest
an electric dipole consists of charges 2e and -2e separated by 1.0 nm. it is in an electric field of strength 4.0 x 106
A 39.0-kg child swings in a swing supported by two chains, each 3.10 m long, Find the force exerted by the seat on the child at the lowest point
A sound wave traveling at 340 m/s is emitted by the foghorn of a tugboat. An echo is heard 2.60 s later. How far away is the reflecting object? reply in units of m.
a solenoid is wound with a single layer of insulated copper wire of diameter 2.500 mm and has a diameter of 3.000 cm
What are the four lowest standing-wave frequencies for an organ pipe that is 4.44 m long and closed at one end? (Assume a temperature of 20° C.)
A water tank is full to a depth of 10 m and the tank is 20 m above ground. The water pressure at ground in a hose 2cm in diameter is..?
In a typical living cell, the electric potential inside thecell is 0.070 V lower than the electric potential outside the cell. The thicknes of the cell membrane is 010 μm. What is the magnitude and direction of the electric fieldwithin the cell me..
A 2.40*10^2 N force is pulling a refrigerator across ahorizontal surface.The force acts at an angle of 20.0degree abovethe surface. what is the work done by the pulling force
A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the mass is at the lowest point on the circle, the speed of the mass is 12 m/s. What is the magnitude of the force of the string on the mass at this pos..
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