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A hare and a tortoise compete in a race over a straight course 1.95 km long. The tortoise crawls at a speed of 0.100 m/s toward the finish line. The hare runs at a speed of 8.10 m/s toward the finish line for 1.560 km and then stops to tease the slow-moving tortoise as the tortoise eventually passes by. The hare waits for a while after the tortoise passes and then runs toward the finish line again at 8.10 m/s. Both the hare and the tortoise cross the finish line at the exact same instant. Assume both animals, when moving, move steadily at their respective speeds.
(a) How far is the tortoise from the finish line when the hare resumes the race?
Three +3.0-?C point charges are at the three corners of a square of side 0.50 m. Find the magnitude of the electric field at the center of the square
Suppose an ideal monatomic gas at an initial temperature of 475 K is compressed from 3.20 L to 2.15 L while its pressure remains constant at 1.01 105 Pa. Find the work done on the gas.
For a wavelength at the peak of visual sensitivity, 550 nm, how many photons lead to an observable flash
Explain the spacing between allowed vibrational energy levels
The component of the external magnetic field along the central axis of a 69-turn coil of radius 23.0 cm decreases from 1.90 T to 0.400 T in 1.70 s. what is the magnitude of the induced current in the coil
The lowest note on a grand piano has a frequency of 27.5 Hz. The entire string is 2.00 m long, What tension is needed to tune this string properly
Two golf balls are glued together and rotated about an axis through the point where they are joined. What is the moment of inertia of the pair of golf balls around the chosen axis
A 5 kg ball hangs from the ceiling by a thread. The walls of the room are 5 m apart and they are made of metal, What is the charge on the ball
a swimming pool measures 10 meters wide by 50 meters long by 4 meters deep. what is the water pressure at this point
Find out the minimum acceleration of the antelope.
A car is travelling at 26 m/s when the driver spots a large pothole in road a distance 34 m ahead. She at once applies her brakes. If her acceleration is -7.5 m/s2, does she manage to stop before reaching the pothole.
If a plaintiff voluntarily enters into or participates into a risk activity that results in injury, illustrate what is the most likely defence that he or she may use to a defendant's claim that the plaintiff supposed the risk?
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