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A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 15.2 minutes at an average speed of 9.27 m/s. During the second part, she rides for 40.7 minutes at an average speed of 3.79 m/s. Finally, during the third part, she rides for 14.1 minutes at an average speed of 12.2 m/s.
(a) How far has the bicyclist traveled during the entire trip?
(b) What is the average speed of the bicyclist for the trip?
An electron that has velocity vector v = (3.4 106 m/s) i hat + (2.9 106 m/s) j hat moves through a magnetic field vector B = (0.03 T) i hat - (0.15 T) j hat. Find the force on the electron
A ball m=1kg rolling without slipping on a flat surface with v=.1m/s strikes the wall after which v=.08m/s. What is the amount of heat generated due to impact?
An airplane pilot wishes to fly due west. A wind of 70.0km/h is blowing toward the south, What is the speed of the plane over the ground
If a car travelling at 30m/s will skid 18.00 m when its brakes lock and the car slides, how far would it skid if it is travelling at 40 m/s when its brakes lock? (This question is typical on some driver's license exams. Note: 10 m/s = 22 mph)
Two long parallel wires each with a mass per unit length of 25.10 g/m are supported in a horizontal plane by 2.5 cm long strings. Each wire carries the same current, I, causing the wires to repel each other so that the angle between supporting string..
Determine the amount by which the star's thermal radiation increases the entropy of the universe each second. Assume that the star is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not consider ther..
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
A 11.0 kg monkey starts to climb a long rope to reach a banana located at a height of 6.50 m, Calculate the least amount of time the monkey could take to reach the banana without breaking the rope
Your medieval history class is constructing a trebuchet, a catapult-like weapon for hurling stones at enemy castles, Find an expression for the angle that will maximize the range of a projectile launched with speed from height above level ground
A hiker's trip consists of three segments. Path A is 8km long heading 65 degrees north of east. Path B is 7km long in a direction due east. Path C is 4.0 km long heading 313 degrees counter clockwise from east.
A parallel-plate capacitor is formed from two 9.10cm x 9.10cm electrodes spaced 2 mm apart. The electric field strength inside the capacitor is 5.00*10^6 . What is the charge (in nC) on each electrode ?What is the final velocity of the electron.
What travel time is required for the landing
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